123223021100797 has 2 divisors, whose sum is σ = 123223021100798. Its totient is φ = 123223021100796.

The previous prime is 123223021100783. The next prime is 123223021100821. The reversal of 123223021100797 is 797001120322321.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 121867226343801 + 1355794756996 = 11039349^2 + 1164386^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-123223021100797 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123223021100297) 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, 61611510550398 + 61611510550399.

It is an arithmetic number, because the mean of its divisors is an integer number (61611510550399).

Almost surely, 2^{123223021100797} is an apocalyptic number.

It is an amenable number.

123223021100797 is a deficient number, since it is larger than the sum of its proper divisors (1).

123223021100797 is an equidigital number, since it uses as much as digits as its factorization.

123223021100797 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 63504, while the sum is 40.

The spelling of 123223021100797 in words is "one hundred twenty-three trillion, two hundred twenty-three billion, twenty-one million, one hundred thousand, seven hundred ninety-seven".