31013002321123 has 16 divisors (see below), whose sum is σ = 31797067531680. Its totient is φ = 30236363748864.

The previous prime is 31013002321109. The next prime is 31013002321129. The reversal of 31013002321123 is 32112320031013.

It is a cyclic number.

It is not a de Polignac number, because 31013002321123 - 2¹³ = 31013002312931 is a prime.

It is a super-2 number, since 2×31013002321123² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 31013002321094 and 31013002321103.

It is not an unprimeable number, because it can be changed into a prime (31013002321129) 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, 54601033 + ... + 55166101.

It is an arithmetic number, because the mean of its divisors is an integer number (1987316720730).

Almost surely, 2^{31013002321123} is an apocalyptic number.

31013002321123 is a deficient number, since it is larger than the sum of its proper divisors (784065210557).

31013002321123 is a wasteful number, since it uses less digits than its factorization.

31013002321123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 571638.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 31013002321123 its reverse (32112320031013), we get a palindrome (63125322352136).

The spelling of 31013002321123 in words is "thirty-one trillion, thirteen billion, two million, three hundred twenty-one thousand, one hundred twenty-three".