123001330319957 has 2 divisors, whose sum is σ = 123001330319958. Its totient is φ = 123001330319956.

The previous prime is 123001330319953. The next prime is 123001330320007. The reversal of 123001330319957 is 759913033100321.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 77128424433841 + 45872905886116 = 8782279^2 + 6772954^2 .

It is an emirp because it is prime and its reverse (759913033100321) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 123001330319957 - 2² = 123001330319953 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123001330319953) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61500665159978 + 61500665159979.

It is an arithmetic number, because the mean of its divisors is an integer number (61500665159979).

Almost surely, 2^{123001330319957} is an apocalyptic number.

It is an amenable number.

123001330319957 is a deficient number, since it is larger than the sum of its proper divisors (1).

123001330319957 is an equidigital number, since it uses as much as digits as its factorization.

123001330319957 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 459270, while the sum is 47.

The spelling of 123001330319957 in words is "one hundred twenty-three trillion, one billion, three hundred thirty million, three hundred nineteen thousand, nine hundred fifty-seven".