323212021128251 has 2 divisors, whose sum is σ = 323212021128252. Its totient is φ = 323212021128250.

The previous prime is 323212021128179. The next prime is 323212021128253. The reversal of 323212021128251 is 152821120212323.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 323212021128251 - 2²² = 323212016933947 is a prime.

Together with 323212021128253, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (323212021128253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 161606010564125 + 161606010564126.

It is an arithmetic number, because the mean of its divisors is an integer number (161606010564126).

Almost surely, 2^{323212021128251} is an apocalyptic number.

323212021128251 is a deficient number, since it is larger than the sum of its proper divisors (1).

323212021128251 is an equidigital number, since it uses as much as digits as its factorization.

323212021128251 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23040, while the sum is 35.

The spelling of 323212021128251 in words is "three hundred twenty-three trillion, two hundred twelve billion, twenty-one million, one hundred twenty-eight thousand, two hundred fifty-one".