23120931 has 8 divisors (see below), whose sum is σ = 31006800. Its totient is φ = 15324512.

The previous prime is 23120927. The next prime is 23120941. The reversal of 23120931 is 13902132.

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 not a de Polignac number, because 23120931 - 2² = 23120927 is a prime.

It is a super-2 number, since 2×23120931² = 1069154900613522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 23120898 and 23120907.

It is not an unprimeable number, because it can be changed into a prime (23120921) 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, 21756 + ... + 22793.

It is an arithmetic number, because the mean of its divisors is an integer number (3875850).

Almost surely, 2^23120931 is an apocalyptic number.

23120931 is a deficient number, since it is larger than the sum of its proper divisors (7885869).

23120931 is a wasteful number, since it uses less digits than its factorization.

23120931 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44725.

The product of its (nonzero) digits is 324, while the sum is 21.

The square root of 23120931 is about 4808.4229223312. The cubic root of 23120931 is about 284.8842497021.

The spelling of 23120931 in words is "twenty-three million, one hundred twenty thousand, nine hundred thirty-one".