23321171 has 4 divisors (see below), whose sum is σ = 23351592. Its totient is φ = 23290752.

The previous prime is 23321153. The next prime is 23321173. The reversal of 23321171 is 17112332.

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

It is a cyclic number.

It is not a de Polignac number, because 23321171 - 2²² = 19126867 is a prime.

It is a super-2 number, since 2×23321171² = 1087754033622482, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23321173) 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, 14030 + ... + 15603.

It is an arithmetic number, because the mean of its divisors is an integer number (5837898).

Almost surely, 2^23321171 is an apocalyptic number.

23321171 is a deficient number, since it is larger than the sum of its proper divisors (30421).

23321171 is an equidigital number, since it uses as much as digits as its factorization.

23321171 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30420.

The product of its digits is 252, while the sum is 20.

The square root of 23321171 is about 4829.1998301996. The cubic root of 23321171 is about 285.7043050442.

The spelling of 23321171 in words is "twenty-three million, three hundred twenty-one thousand, one hundred seventy-one".