23231231031 has 16 divisors (see below), whose sum is σ = 31880878848. Its totient is φ = 15038116800.

The previous prime is 23231231021. The next prime is 23231231053. The reversal of 23231231031 is 13013213232.

It is not a de Polignac number, because 23231231031 - 2¹⁴ = 23231214647 is a prime.

It is a super-2 number, since 2×23231231031² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 23231230989 and 23231231007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23231231021) 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 15 ways as a sum of consecutive naturals, for example, 421611 + ... + 473516.

It is an arithmetic number, because the mean of its divisors is an integer number (1992554928).

Almost surely, 2^23231231031 is an apocalyptic number.

23231231031 is a deficient number, since it is larger than the sum of its proper divisors (8649647817).

23231231031 is a wasteful number, since it uses less digits than its factorization.

23231231031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 895382.

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

Adding to 23231231031 its reverse (13013213232), we get a palindrome (36244444263).

The spelling of 23231231031 in words is "twenty-three billion, two hundred thirty-one million, two hundred thirty-one thousand, thirty-one".