23397578131 has 8 divisors (see below), whose sum is σ = 24258312000. Its totient is φ = 22540439040.

The previous prime is 23397578111. The next prime is 23397578143. The reversal of 23397578131 is 13187579332.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23397578131 is a prime.

It is a super-2 number, since 2×23397578131² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23397578111) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 885435 + ... + 911476.

It is an arithmetic number, because the mean of its divisors is an integer number (3032289000).

Almost surely, 2^23397578131 is an apocalyptic number.

23397578131 is a deficient number, since it is larger than the sum of its proper divisors (860733869).

23397578131 is a wasteful number, since it uses less digits than its factorization.

23397578131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1797389.

The product of its digits is 952560, while the sum is 49.

The spelling of 23397578131 in words is "twenty-three billion, three hundred ninety-seven million, five hundred seventy-eight thousand, one hundred thirty-one".