23112303012 has 72 divisors (see below), whose sum is σ = 61919335296. Its totient is φ = 7243893504.

The previous prime is 23112303001. The next prime is 23112303013. The reversal of 23112303012 is 21030321132.

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

It is not an unprimeable number, because it can be changed into a prime (23112303013) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 632793 + ... + 668319.

It is an arithmetic number, because the mean of its divisors is an integer number (859990768).

Almost surely, 2^23112303012 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 23112303012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30959667648).

23112303012 is an abundant number, since it is smaller than the sum of its proper divisors (38807032284).

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

23112303012 is a wasteful number, since it uses less digits than its factorization.

23112303012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36617 (or 36612 counting only the distinct ones).

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

Adding to 23112303012 its reverse (21030321132), we get a palindrome (44142624144).

The spelling of 23112303012 in words is "twenty-three billion, one hundred twelve million, three hundred three thousand, twelve".