23320111212 has 72 divisors (see below), whose sum is σ = 62494303872. Its totient is φ = 7319289600.

The previous prime is 23320111189. The next prime is 23320111219. The reversal of 23320111212 is 21211102332.

23320111212 is a `hidden beast` number, since 23 + 320 + 111 + 212 = 666.

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 (23320111219) 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, 241089 + ... + 323672.

Almost surely, 2^23320111212 is an apocalyptic number.

It is an amenable number.

23320111212 is an abundant number, since it is smaller than the sum of its proper divisors (39174192660).

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

23320111212 is a wasteful number, since it uses less digits than its factorization.

23320111212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 564839 (or 564834 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 23320111212 its reverse (21211102332), we get a palindrome (44531213544).

The spelling of 23320111212 in words is "twenty-three billion, three hundred twenty million, one hundred eleven thousand, two hundred twelve".