323023320157 has 2 divisors, whose sum is σ = 323023320158. Its totient is φ = 323023320156.

The previous prime is 323023320097. The next prime is 323023320161. The reversal of 323023320157 is 751023320323.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 289041715876 + 33981604281 = 537626^2 + 184341^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-323023320157 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (323023320457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 161511660078 + 161511660079.

It is an arithmetic number, because the mean of its divisors is an integer number (161511660079).

Almost surely, 2^323023320157 is an apocalyptic number.

It is an amenable number.

323023320157 is a deficient number, since it is larger than the sum of its proper divisors (1).

323023320157 is an equidigital number, since it uses as much as digits as its factorization.

323023320157 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 22680, while the sum is 31.

The spelling of 323023320157 in words is "three hundred twenty-three billion, twenty-three million, three hundred twenty thousand, one hundred fifty-seven".