23311057 has 16 divisors (see below), whose sum is σ = 29297664. Its totient is φ = 18018000.

The previous prime is 23311051. The next prime is 23311087. The reversal of 23311057 is 75011332.

It is not a de Polignac number, because 23311057 - 2³ = 23311049 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23311051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8932 + ... + 11242.

It is an arithmetic number, because the mean of its divisors is an integer number (1831104).

Almost surely, 2^23311057 is an apocalyptic number.

It is an amenable number.

23311057 is a deficient number, since it is larger than the sum of its proper divisors (5986607).

23311057 is a wasteful number, since it uses less digits than its factorization.

23311057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2460.

The product of its (nonzero) digits is 630, while the sum is 22.

The square root of 23311057 is about 4828.1525452289. The cubic root of 23311057 is about 285.6629973533.

Adding to 23311057 its reverse (75011332), we get a palindrome (98322389).

The spelling of 23311057 in words is "twenty-three million, three hundred eleven thousand, fifty-seven".