23212103312 has 20 divisors (see below), whose sum is σ = 47340474480. Its totient is φ = 10995206688.

The previous prime is 23212103279. The next prime is 23212103329. The reversal of 23212103312 is 21330121232.

It is a super-2 number, since 2×23212103312² (a number of 22 digits) contains 22 as substring.

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, 38177498 + ... + 38178105.

It is an arithmetic number, because the mean of its divisors is an integer number (2367023724).

Almost surely, 2^23212103312 is an apocalyptic number.

It is an amenable number.

23212103312 is an abundant number, since it is smaller than the sum of its proper divisors (24128371168).

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

23212103312 is a wasteful number, since it uses less digits than its factorization.

23212103312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76355630 (or 76355624 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 23212103312 its reverse (21330121232), we get a palindrome (44542224544).

The spelling of 23212103312 in words is "twenty-three billion, two hundred twelve million, one hundred three thousand, three hundred twelve".