23109612 has 12 divisors (see below), whose sum is σ = 53922456. Its totient is φ = 7703200.

The previous prime is 23109587. The next prime is 23109631. The reversal of 23109612 is 21690132.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 962889 + ... + 962912.

It is an arithmetic number, because the mean of its divisors is an integer number (4493538).

Almost surely, 2^23109612 is an apocalyptic number.

It is an amenable number.

23109612 is an abundant number, since it is smaller than the sum of its proper divisors (30812844).

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

23109612 is a wasteful number, since it uses less digits than its factorization.

23109612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1925808 (or 1925806 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 24.

The square root of 23109612 is about 4807.2457811100. The cubic root of 23109612 is about 284.8377531434.

Adding to 23109612 its reverse (21690132), we get a palindrome (44799744).

The spelling of 23109612 in words is "twenty-three million, one hundred nine thousand, six hundred twelve".