23211057659 has 4 divisors (see below), whose sum is σ = 23212016520. Its totient is φ = 23210098800.

The previous prime is 23211057641. The next prime is 23211057697. The reversal of 23211057659 is 95675011232.

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 23211057659 - 2⁸ = 23211057403 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23211057629) 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, 442154 + ... + 491855.

It is an arithmetic number, because the mean of its divisors is an integer number (5803004130).

Almost surely, 2^23211057659 is an apocalyptic number.

23211057659 is a deficient number, since it is larger than the sum of its proper divisors (958861).

23211057659 is an equidigital number, since it uses as much as digits as its factorization.

23211057659 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 958860.

The product of its (nonzero) digits is 113400, while the sum is 41.

The spelling of 23211057659 in words is "twenty-three billion, two hundred eleven million, fifty-seven thousand, six hundred fifty-nine".