123351792068 has 6 divisors (see below), whose sum is σ = 215865636126. Its totient is φ = 61675896032.

The previous prime is 123351792043. The next prime is 123351792079. The reversal of 123351792068 is 860297153321.

It can be written as a sum of positive squares in only one way, i.e., 116691926404 + 6659865664 = 341602^2 + 81608^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15418974005 + ... + 15418974012.

It is an arithmetic number, because the mean of its divisors is an integer number (35977606021).

Almost surely, 2^123351792068 is an apocalyptic number.

It is an amenable number.

123351792068 is a deficient number, since it is larger than the sum of its proper divisors (92513844058).

123351792068 is a wasteful number, since it uses less digits than its factorization.

123351792068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30837948021 (or 30837948019 counting only the distinct ones).

The product of its (nonzero) digits is 544320, while the sum is 47.

The spelling of 123351792068 in words is "one hundred twenty-three billion, three hundred fifty-one million, seven hundred ninety-two thousand, sixty-eight".