123902969820743 has 2 divisors, whose sum is σ = 123902969820744. Its totient is φ = 123902969820742.

The previous prime is 123902969820629. The next prime is 123902969820767. The reversal of 123902969820743 is 347028969209321.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 123902969820743 - 2²⁶ = 123902902711879 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 123902969820743.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123902969850743) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61951484910371 + 61951484910372.

It is an arithmetic number, because the mean of its divisors is an integer number (61951484910372).

Almost surely, 2^{123902969820743} is an apocalyptic number.

123902969820743 is a deficient number, since it is larger than the sum of its proper divisors (1).

123902969820743 is an equidigital number, since it uses as much as digits as its factorization.

123902969820743 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 70543872, while the sum is 65.

The spelling of 123902969820743 in words is "one hundred twenty-three trillion, nine hundred two billion, nine hundred sixty-nine million, eight hundred twenty thousand, seven hundred forty-three".