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1312013320230 = 235312683525817
BaseRepresentation
bin10011000101111010000…
…101101000000000100110
311122102112110112100111110
4103011322011220000212
5132444000402221410
62442421450445450
7163534625133534
oct23057205500046
94572473470443
101312013320230
11466470351518
1219233a733886
1396950c43b52
1447704c73154
15241dd927720
hex1317a168026

1312013320230 has 64 divisors (see below), whose sum is σ = 3251624859648. Its totient is φ = 338457242880.

The previous prime is 1312013320201. The next prime is 1312013320249. The reversal of 1312013320230 is 320233102131.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1312013320197 and 1312013320206.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2232282 + ... + 2758098.

It is an arithmetic number, because the mean of its divisors is an integer number (50806638432).

Almost surely, 21312013320230 is an apocalyptic number.

1312013320230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1312013320230 is an abundant number, since it is smaller than the sum of its proper divisors (1939611539418).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1312013320230 is a wasteful number, since it uses less digits than its factorization.

1312013320230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 528541.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 1312013320230 its reverse (320233102131), we get a palindrome (1632246422361).

The spelling of 1312013320230 in words is "one trillion, three hundred twelve billion, thirteen million, three hundred twenty thousand, two hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 31 62 93 155 186 310 465 930 2683 5366 8049 13415 16098 26830 40245 80490 83173 166346 249519 415865 499038 525817 831730 1051634 1247595 1577451 2495190 2629085 3154902 5258170 7887255 15774510 16300327 32600654 48900981 81501635 97801962 163003270 244504905 489009810 1410767011 2821534022 4232301033 7053835055 8464602066 14107670110 21161505165 42323010330 43733777341 87467554682 131201332023 218668886705 262402664046 437337773410 656006660115 1312013320230