23013131031 has 48 divisors (see below), whose sum is σ = 36579658752. Its totient is φ = 13826160000.

The previous prime is 23013131021. The next prime is 23013131033. The reversal of 23013131031 is 13013131032.

It is a happy number.

It is not a de Polignac number, because 23013131031 - 2¹⁵ = 23013098263 is a prime.

It is a super-2 number, since 2×23013131031² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 23013130995 and 23013131013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23013131033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5539251 + ... + 5543403.

It is an arithmetic number, because the mean of its divisors is an integer number (762076224).

Almost surely, 2^23013131031 is an apocalyptic number.

23013131031 is a deficient number, since it is larger than the sum of its proper divisors (13566527721).

23013131031 is a wasteful number, since it uses less digits than its factorization.

23013131031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4644 (or 4641 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 18.

Adding to 23013131031 its reverse (13013131032), we get a palindrome (36026262063).

Subtracting from 23013131031 its reverse (13013131032), we obtain a palindrome (9999999999).

It can be divided in two parts, 230131 and 31031, that added together give a palindrome (261162).

The spelling of 23013131031 in words is "twenty-three billion, thirteen million, one hundred thirty-one thousand, thirty-one".