790531123121 has 4 divisors (see below), whose sum is σ = 798680928612. Its totient is φ = 782381317632.

The previous prime is 790531123103. The next prime is 790531123127. The reversal of 790531123121 is 121321135097.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 131162762896 + 659368360225 = 362164^2 + 812015^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-790531123121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (790531123127) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4074902600 + ... + 4074902793.

It is an arithmetic number, because the mean of its divisors is an integer number (199670232153).

Almost surely, 2^790531123121 is an apocalyptic number.

It is an amenable number.

790531123121 is a deficient number, since it is larger than the sum of its proper divisors (8149805491).

790531123121 is an equidigital number, since it uses as much as digits as its factorization.

790531123121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8149805490.

The product of its (nonzero) digits is 11340, while the sum is 35.

The spelling of 790531123121 in words is "seven hundred ninety billion, five hundred thirty-one million, one hundred twenty-three thousand, one hundred twenty-one".