23111310231 has 32 divisors (see below), whose sum is σ = 36052224000. Its totient is φ = 14592083904.

The previous prime is 23111310169. The next prime is 23111310251. The reversal of 23111310231 is 13201311132.

It is not a de Polignac number, because 23111310231 - 2³⁰ = 22037568407 is a prime.

It is a super-2 number, since 2×23111310231² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23111310251) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2572315 + ... + 2581283.

It is an arithmetic number, because the mean of its divisors is an integer number (1126632000).

Almost surely, 2^23111310231 is an apocalyptic number.

23111310231 is a deficient number, since it is larger than the sum of its proper divisors (12940913769).

23111310231 is a wasteful number, since it uses less digits than its factorization.

23111310231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14020 (or 14014 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 23111310231 its reverse (13201311132), we get a palindrome (36312621363).

Subtracting from 23111310231 its reverse (13201311132), we obtain a palindrome (9909999099).

The spelling of 23111310231 in words is "twenty-three billion, one hundred eleven million, three hundred ten thousand, two hundred thirty-one".