123020420430983 has 2 divisors, whose sum is σ = 123020420430984. Its totient is φ = 123020420430982.

The previous prime is 123020420430967. The next prime is 123020420431021. The reversal of 123020420430983 is 389034024020321.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 123020420430983 - 2⁴ = 123020420430967 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 123020420430983.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123020420433983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61510210215491 + 61510210215492.

It is an arithmetic number, because the mean of its divisors is an integer number (61510210215492).

Almost surely, 2^{123020420430983} is an apocalyptic number.

123020420430983 is a deficient number, since it is larger than the sum of its proper divisors (1).

123020420430983 is an equidigital number, since it uses as much as digits as its factorization.

123020420430983 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 248832, while the sum is 41.

The spelling of 123020420430983 in words is "one hundred twenty-three trillion, twenty billion, four hundred twenty million, four hundred thirty thousand, nine hundred eighty-three".