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1311425712025 = 5211213167397503
BaseRepresentation
bin10011000101010111000…
…100000100111110011001
311122101000111211202120121
4103011113010010332121
5132441244440241100
62442243300153241
7163514231425222
oct23052704047631
94571014752517
101311425712025
11466199697800
121921b5998821
13968892966a0
144768abd4249
15241a705651a
hex13157104f99

1311425712025 has 144 divisors (see below), whose sum is σ = 1945199999232. Its totient is φ = 871186060800.

The previous prime is 1311425712017. The next prime is 1311425712029. The reversal of 1311425712025 is 5202175241131.

It is not a de Polignac number, because 1311425712025 - 23 = 1311425712017 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1311425712029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 2607207924 + ... + 2607208426.

It is an arithmetic number, because the mean of its divisors is an integer number (13508333328).

Almost surely, 21311425712025 is an apocalyptic number.

It is an amenable number.

1311425712025 is a deficient number, since it is larger than the sum of its proper divisors (633774287207).

1311425712025 is a wasteful number, since it uses less digits than its factorization.

1311425712025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1112 (or 1096 counting only the distinct ones).

The product of its (nonzero) digits is 16800, while the sum is 34.

The spelling of 1311425712025 in words is "one trillion, three hundred eleven billion, four hundred twenty-five million, seven hundred twelve thousand, twenty-five".

Divisors: 1 5 11 13 25 55 65 121 143 167 275 325 397 503 605 715 835 1573 1837 1985 2171 2515 3025 3575 4175 4367 5161 5533 6539 7865 9185 9925 10855 12575 20207 21835 23881 25805 27665 32695 39325 45925 48037 54275 56771 60863 66299 71929 84001 101035 109175 119405 129025 138325 163475 199691 240185 262691 283855 304315 331495 359645 420005 505175 597025 624481 729289 791219 861887 924011 998455 1092013 1200925 1313455 1419275 1521575 1657475 1798225 2100025 2196601 2595983 3122405 3646445 3956095 4309435 4620055 4992275 5460065 6567275 8022179 9480757 10164121 10983005 12012143 12979915 15612025 18232225 19780475 21547175 23100275 24162611 27300325 28555813 33348397 40110895 47403785 50820605 54915025 60060715 64899575 104288327 120813055 132133573 142779065 166741985 200554475 237018925 254103025 300303575 314113943 366832367 433529161 521441635 604065275 660667865 713895325 833709925 1570569715 1834161835 2167645805 2607208175 3303339325 4035156037 4768820771 7852848575 9170809175 10838229025 20175780185 23844103855 52457028481 100878900925 119220519275 262285142405 1311425712025