23812565212 has 12 divisors (see below), whose sum is σ = 41673073680. Its totient is φ = 11905972736.

The previous prime is 23812565197. The next prime is 23812565269. The reversal of 23812565212 is 21256521832.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 239913 + ... + 324319.

It is an arithmetic number, because the mean of its divisors is an integer number (3472756140).

Almost surely, 2^23812565212 is an apocalyptic number.

It is an amenable number.

23812565212 is a deficient number, since it is larger than the sum of its proper divisors (17860508468).

23812565212 is a wasteful number, since it uses less digits than its factorization.

23812565212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154940 (or 154938 counting only the distinct ones).

The product of its digits is 57600, while the sum is 37.

The spelling of 23812565212 in words is "twenty-three billion, eight hundred twelve million, five hundred sixty-five thousand, two hundred twelve".