23378351931 has 48 divisors (see below), whose sum is σ = 37814231520. Its totient is φ = 13798080000.

The previous prime is 23378351891. The next prime is 23378351947. The reversal of 23378351931 is 13915387332.

23378351931 is a `hidden beast` number, since 2 + 33 + 78 + 3 + 519 + 31 = 666.

It is not a de Polignac number, because 23378351931 - 2⁹ = 23378351419 is a prime.

It is a super-2 number, since 2×23378351931² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (23378351231) 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, 590775 + ... + 629103.

It is an arithmetic number, because the mean of its divisors is an integer number (787796490).

Almost surely, 2^23378351931 is an apocalyptic number.

23378351931 is a deficient number, since it is larger than the sum of its proper divisors (14435879589).

23378351931 is a wasteful number, since it uses less digits than its factorization.

23378351931 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38508 (or 38505 counting only the distinct ones).

The product of its digits is 408240, while the sum is 45.

The spelling of 23378351931 in words is "twenty-three billion, three hundred seventy-eight million, three hundred fifty-one thousand, nine hundred thirty-one".