23201212112 has 40 divisors (see below), whose sum is σ = 48461752416. Its totient is φ = 10696853376.

The previous prime is 23201212109. The next prime is 23201212123. The reversal of 23201212112 is 21121210232.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 138083 + ... + 255869.

Almost surely, 2^23201212112 is an apocalyptic number.

It is an amenable number.

23201212112 is an abundant number, since it is smaller than the sum of its proper divisors (25260540304).

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

23201212112 is a wasteful number, since it uses less digits than its factorization.

23201212112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118755 (or 118749 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 23201212112 its reverse (21121210232), we get a palindrome (44322422344).

The spelling of 23201212112 in words is "twenty-three billion, two hundred one million, two hundred twelve thousand, one hundred twelve".