23131029973 has 8 divisors (see below), whose sum is σ = 23197539456. Its totient is φ = 23064580800.

The previous prime is 23131029959. The next prime is 23131029997. The reversal of 23131029973 is 37992013132.

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

It is a cyclic number.

It is not a de Polignac number, because 23131029973 - 2³³ = 14541095381 is a prime.

It is a super-2 number, since 2×23131029973² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23131029953) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 818365 + ... + 846157.

It is an arithmetic number, because the mean of its divisors is an integer number (2899692432).

Almost surely, 2^23131029973 is an apocalyptic number.

It is an amenable number.

23131029973 is a deficient number, since it is larger than the sum of its proper divisors (66509483).

23131029973 is a wasteful number, since it uses less digits than its factorization.

23131029973 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30155.

The product of its (nonzero) digits is 61236, while the sum is 40.

The spelling of 23131029973 in words is "twenty-three billion, one hundred thirty-one million, twenty-nine thousand, nine hundred seventy-three".