23177665321 has 2 divisors, whose sum is σ = 23177665322. Its totient is φ = 23177665320.

The previous prime is 23177665297. The next prime is 23177665369. The reversal of 23177665321 is 12356677132.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22944675625 + 232989696 = 151475^2 + 15264^2 .

It is a cyclic number.

It is not a de Polignac number, because 23177665321 - 2¹⁵ = 23177632553 is a prime.

It is not a weakly prime, because it can be changed into another prime (23177665421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11588832660 + 11588832661.

It is an arithmetic number, because the mean of its divisors is an integer number (11588832661).

Almost surely, 2^23177665321 is an apocalyptic number.

It is an amenable number.

23177665321 is a deficient number, since it is larger than the sum of its proper divisors (1).

23177665321 is an equidigital number, since it uses as much as digits as its factorization.

23177665321 is an evil number, because the sum of its binary digits is even.

The product of its digits is 317520, while the sum is 43.

The spelling of 23177665321 in words is "twenty-three billion, one hundred seventy-seven million, six hundred sixty-five thousand, three hundred twenty-one".