123231120202279 has 2 divisors, whose sum is σ = 123231120202280. Its totient is φ = 123231120202278.

The previous prime is 123231120202259. The next prime is 123231120202423. The reversal of 123231120202279 is 972202021132321.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 123231120202279 - 2²³ = 123231111813671 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123231120202259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61615560101139 + 61615560101140.

It is an arithmetic number, because the mean of its divisors is an integer number (61615560101140).

Almost surely, 2^{123231120202279} is an apocalyptic number.

123231120202279 is a deficient number, since it is larger than the sum of its proper divisors (1).

123231120202279 is an equidigital number, since it uses as much as digits as its factorization.

123231120202279 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36288, while the sum is 37.

The spelling of 123231120202279 in words is "one hundred twenty-three trillion, two hundred thirty-one billion, one hundred twenty million, two hundred two thousand, two hundred seventy-nine".