182120879321 has 2 divisors, whose sum is σ = 182120879322. Its totient is φ = 182120879320.

The previous prime is 182120879173. The next prime is 182120879333. The reversal of 182120879321 is 123978021281.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 166753806025 + 15367073296 = 408355^2 + 123964^2 .

It is an emirp because it is prime and its reverse (123978021281) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-182120879321 is a prime.

It is not a weakly prime, because it can be changed into another prime (182120876321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 91060439660 + 91060439661.

It is an arithmetic number, because the mean of its divisors is an integer number (91060439661).

Almost surely, 2^182120879321 is an apocalyptic number.

It is an amenable number.

182120879321 is a deficient number, since it is larger than the sum of its proper divisors (1).

182120879321 is an equidigital number, since it uses as much as digits as its factorization.

182120879321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96768, while the sum is 44.

The spelling of 182120879321 in words is "one hundred eighty-two billion, one hundred twenty million, eight hundred seventy-nine thousand, three hundred twenty-one".