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1310022131231 = 11297356255513
BaseRepresentation
bin10011000100000011011…
…001110101111000011111
311122020101200202110200202
4103010003121311320133
5132430411131144411
62441452120414115
7163434366250022
oct23040331657037
94566350673622
101310022131231
11465639382780
12191a8391733b
13966c45630c8
144759662d1b9
1524123c0583b
hex13103675e1f

1310022131231 has 16 divisors (see below), whose sum is σ = 1498646892960. Its totient is φ = 1134111121920.

The previous prime is 1310022131219. The next prime is 1310022131261. The reversal of 1310022131231 is 1321312200131.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1310022131231 - 26 = 1310022131167 is a prime.

It is a super-2 number, since 2×13100221312312 (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1310022131261) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28104470 + ... + 28151043.

It is an arithmetic number, because the mean of its divisors is an integer number (93665430810).

Almost surely, 21310022131231 is an apocalyptic number.

1310022131231 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1310022131231 is a deficient number, since it is larger than the sum of its proper divisors (188624761729).

1310022131231 is a wasteful number, since it uses less digits than its factorization.

1310022131231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56255626.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 1310022131231 its reverse (1321312200131), we get a palindrome (2631334331362).

The spelling of 1310022131231 in words is "one trillion, three hundred ten billion, twenty-two million, one hundred thirty-one thousand, two hundred thirty-one".

Divisors: 1 11 29 73 319 803 2117 23287 56255513 618810643 1631409877 4106652449 17945508647 45173176939 119092921021 1310022131231