321121030973 has 2 divisors, whose sum is σ = 321121030974. Its totient is φ = 321121030972.

The previous prime is 321121030963. The next prime is 321121031041. The reversal of 321121030973 is 379030121123.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 193773398809 + 127347632164 = 440197^2 + 356858^2 .

It is a cyclic number.

It is not a de Polignac number, because 321121030973 - 2⁴ = 321121030957 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (321121030903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160560515486 + 160560515487.

It is an arithmetic number, because the mean of its divisors is an integer number (160560515487).

Almost surely, 2^321121030973 is an apocalyptic number.

It is an amenable number.

321121030973 is a deficient number, since it is larger than the sum of its proper divisors (1).

321121030973 is an equidigital number, since it uses as much as digits as its factorization.

321121030973 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6804, while the sum is 32.

The spelling of 321121030973 in words is "three hundred twenty-one billion, one hundred twenty-one million, thirty thousand, nine hundred seventy-three".