23056311 has 4 divisors (see below), whose sum is σ = 30741752. Its totient is φ = 15370872.

The previous prime is 23056283. The next prime is 23056337. The reversal of 23056311 is 11365032.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 23056311 - 2⁵ = 23056279 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 (23056351) 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 3 ways as a sum of consecutive naturals, for example, 3842716 + ... + 3842721.

It is an arithmetic number, because the mean of its divisors is an integer number (7685438).

Almost surely, 2^23056311 is an apocalyptic number.

23056311 is a deficient number, since it is larger than the sum of its proper divisors (7685441).

23056311 is an equidigital number, since it uses as much as digits as its factorization.

23056311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7685440.

The product of its (nonzero) digits is 540, while the sum is 21.

The square root of 23056311 is about 4801.6987618967. The cubic root of 23056311 is about 284.6185972311.

The spelling of 23056311 in words is "twenty-three million, fifty-six thousand, three hundred eleven".