23012213112 has 48 divisors (see below), whose sum is σ = 71228280240. Its totient is φ = 6574917888.

The previous prime is 23012213053. The next prime is 23012213117. The reversal of 23012213112 is 21131221032.

23012213112 is a `hidden beast` number, since 230 + 122 + 1 + 311 + 2 = 666.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23012213117) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22829073 + ... + 22830080.

It is an arithmetic number, because the mean of its divisors is an integer number (1483922505).

Almost surely, 2^23012213112 is an apocalyptic number.

It is an amenable number.

23012213112 is an abundant number, since it is smaller than the sum of its proper divisors (48216067128).

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

23012213112 is a wasteful number, since it uses less digits than its factorization.

23012213112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45659172 (or 45659165 counting only the distinct ones).

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

Adding to 23012213112 its reverse (21131221032), we get a palindrome (44143434144).

The spelling of 23012213112 in words is "twenty-three billion, twelve million, two hundred thirteen thousand, one hundred twelve".