321123343190051 has 2 divisors, whose sum is σ = 321123343190052. Its totient is φ = 321123343190050.

The previous prime is 321123343190009. The next prime is 321123343190057. The reversal of 321123343190051 is 150091343321123.

It is a strong prime.

It is an emirp because it is prime and its reverse (150091343321123) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 321123343190051 - 2²² = 321123338995747 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 321123343189987 and 321123343190014.

It is not a weakly prime, because it can be changed into another prime (321123343190057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160561671595025 + 160561671595026.

It is an arithmetic number, because the mean of its divisors is an integer number (160561671595026).

Almost surely, 2^{321123343190051} is an apocalyptic number.

321123343190051 is a deficient number, since it is larger than the sum of its proper divisors (1).

321123343190051 is an equidigital number, since it uses as much as digits as its factorization.

321123343190051 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 58320, while the sum is 38.

The spelling of 321123343190051 in words is "three hundred twenty-one trillion, one hundred twenty-three billion, three hundred forty-three million, one hundred ninety thousand, fifty-one".