23130917 has 4 divisors (see below), whose sum is σ = 23260320. Its totient is φ = 23001516.

The previous prime is 23130901. The next prime is 23130941. The reversal of 23130917 is 71903132.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 23130917 - 2⁴ = 23130901 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23130997) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 64433 + ... + 64790.

It is an arithmetic number, because the mean of its divisors is an integer number (5815080).

Almost surely, 2^23130917 is an apocalyptic number.

It is an amenable number.

23130917 is a deficient number, since it is larger than the sum of its proper divisors (129403).

23130917 is a wasteful number, since it uses less digits than its factorization.

23130917 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129402.

The product of its (nonzero) digits is 1134, while the sum is 26.

The square root of 23130917 is about 4809.4611964335. The cubic root of 23130917 is about 284.9252579217.

The spelling of 23130917 in words is "twenty-three million, one hundred thirty thousand, nine hundred seventeen".