23102031312 has 120 divisors (see below), whose sum is σ = 67598691264. Its totient is φ = 7351229952.

The previous prime is 23102031259. The next prime is 23102031331. The reversal of 23102031312 is 21313020132.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1725508 + ... + 1738844.

Almost surely, 2^23102031312 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23102031312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33799345632).

23102031312 is an abundant number, since it is smaller than the sum of its proper divisors (44496659952).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23102031312 is a wasteful number, since it uses less digits than its factorization.

23102031312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13897 (or 13888 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 23102031312 its reverse (21313020132), we get a palindrome (44415051444).

The spelling of 23102031312 in words is "twenty-three billion, one hundred two million, thirty-one thousand, three hundred twelve".