123020465223151 has 24 divisors (see below), whose sum is σ = 134360547627600. Its totient is φ = 112230693459456.

The previous prime is 123020465223109. The next prime is 123020465223179. The reversal of 123020465223151 is 151322564020321.

It is a happy number.

It is not a de Polignac number, because 123020465223151 - 2⁷ = 123020465223023 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 123020465223151.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123020465223191) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11555676 + ... + 19482673.

It is an arithmetic number, because the mean of its divisors is an integer number (5598356151150).

Almost surely, 2^{123020465223151} is an apocalyptic number.

123020465223151 is a deficient number, since it is larger than the sum of its proper divisors (11340082404449).

123020465223151 is an equidigital number, since it uses as much as digits as its factorization.

123020465223151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31038555 (or 31038502 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 37.

The spelling of 123020465223151 in words is "one hundred twenty-three trillion, twenty billion, four hundred sixty-five million, two hundred twenty-three thousand, one hundred fifty-one".