23120979 has 16 divisors (see below), whose sum is σ = 35831040. Its totient is φ = 12987360.

The previous prime is 23120959. The next prime is 23120989. The reversal of 23120979 is 97902132.

It is not a de Polignac number, because 23120979 - 2¹² = 23116883 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23120959) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8092 + ... + 10569.

It is an arithmetic number, because the mean of its divisors is an integer number (2239440).

Almost surely, 2^23120979 is an apocalyptic number.

23120979 is a deficient number, since it is larger than the sum of its proper divisors (12710061).

23120979 is a wasteful number, since it uses less digits than its factorization.

23120979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18730.

The product of its (nonzero) digits is 6804, while the sum is 33.

The square root of 23120979 is about 4808.4279135701. The cubic root of 23120979 is about 284.8844468457.

The spelling of 23120979 in words is "twenty-three million, one hundred twenty thousand, nine hundred seventy-nine".