321030130991 has 2 divisors, whose sum is σ = 321030130992. Its totient is φ = 321030130990.

The previous prime is 321030130973. The next prime is 321030131003. The reversal of 321030130991 is 199031030123.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 321030130991 - 2¹⁰ = 321030129967 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (321030130961) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160515065495 + 160515065496.

It is an arithmetic number, because the mean of its divisors is an integer number (160515065496).

Almost surely, 2^321030130991 is an apocalyptic number.

321030130991 is a deficient number, since it is larger than the sum of its proper divisors (1).

321030130991 is an equidigital number, since it uses as much as digits as its factorization.

321030130991 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4374, while the sum is 32.

The spelling of 321030130991 in words is "three hundred twenty-one billion, thirty million, one hundred thirty thousand, nine hundred ninety-one".