321103130993 has 2 divisors, whose sum is σ = 321103130994. Its totient is φ = 321103130992.

The previous prime is 321103130947. The next prime is 321103131059. The reversal of 321103130993 is 399031301123.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 313613440144 + 7489690849 = 560012^2 + 86543^2 .

It is a cyclic number.

It is not a de Polignac number, because 321103130993 - 2²² = 321098936689 is a prime.

It is not a weakly prime, because it can be changed into another prime (321103130093) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160551565496 + 160551565497.

It is an arithmetic number, because the mean of its divisors is an integer number (160551565497).

Almost surely, 2^321103130993 is an apocalyptic number.

It is an amenable number.

321103130993 is a deficient number, since it is larger than the sum of its proper divisors (1).

321103130993 is an equidigital number, since it uses as much as digits as its factorization.

321103130993 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13122, while the sum is 35.

The spelling of 321103130993 in words is "three hundred twenty-one billion, one hundred three million, one hundred thirty thousand, nine hundred ninety-three".