23213331999 has 48 divisors (see below), whose sum is σ = 40708533600. Its totient is φ = 12986455680.

The previous prime is 23213331979. The next prime is 23213332003. The reversal of 23213331999 is 99913331232.

23213331999 is a `hidden beast` number, since 2 + 321 + 3 + 3 + 319 + 9 + 9 = 666.

It is not a de Polignac number, because 23213331999 - 2²⁷ = 23079114271 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23213331949) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 230814 + ... + 315755.

It is an arithmetic number, because the mean of its divisors is an integer number (848094450).

Almost surely, 2^23213331999 is an apocalyptic number.

23213331999 is a deficient number, since it is larger than the sum of its proper divisors (17495201601).

23213331999 is a wasteful number, since it uses less digits than its factorization.

23213331999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 546613 (or 546596 counting only the distinct ones).

The product of its digits is 236196, while the sum is 45.

The spelling of 23213331999 in words is "twenty-three billion, two hundred thirteen million, three hundred thirty-one thousand, nine hundred ninety-nine".