123167431717172 has 6 divisors (see below), whose sum is σ = 215543005505058. Its totient is φ = 61583715858584.

The previous prime is 123167431717117. The next prime is 123167431717277. The reversal of 123167431717172 is 271717134761321.

It can be written as a sum of positive squares in only one way, i.e., 83515399032976 + 39652032684196 = 9138676^2 + 6296986^2 .

It is a congruent number.

It is an unprimeable number.

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, 15395928964643 + ... + 15395928964650.

It is an arithmetic number, because the mean of its divisors is an integer number (35923834250843).

Almost surely, 2^{123167431717172} is an apocalyptic number.

It is an amenable number.

123167431717172 is a deficient number, since it is larger than the sum of its proper divisors (92375573787886).

123167431717172 is a wasteful number, since it uses less digits than its factorization.

123167431717172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30791857929297 (or 30791857929295 counting only the distinct ones).

The product of its digits is 2074464, while the sum is 53.

The spelling of 123167431717172 in words is "one hundred twenty-three trillion, one hundred sixty-seven billion, four hundred thirty-one million, seven hundred seventeen thousand, one hundred seventy-two".