23993211312 has 80 divisors (see below), whose sum is σ = 78707898880. Its totient is φ = 6855202368.

The previous prime is 23993211311. The next prime is 23993211331. The reversal of 23993211312 is 21311239932.

23993211312 is a `hidden beast` number, since 239 + 93 + 21 + 1 + 312 = 666.

It is a super-2 number, since 2×23993211312² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (23993211311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3964108 + ... + 3970155.

It is an arithmetic number, because the mean of its divisors is an integer number (983848736).

Almost surely, 2^23993211312 is an apocalyptic number.

It is an amenable number.

23993211312 is an abundant number, since it is smaller than the sum of its proper divisors (54714687568).

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

23993211312 is a wasteful number, since it uses less digits than its factorization.

23993211312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7934287 (or 7934275 counting only the distinct ones).

The product of its digits is 17496, while the sum is 36.

The spelling of 23993211312 in words is "twenty-three billion, nine hundred ninety-three million, two hundred eleven thousand, three hundred twelve".