122713129872 has 80 divisors (see below), whose sum is σ = 356580778560. Its totient is φ = 40904364960.

The previous prime is 122713129871. The next prime is 122713129901. The reversal of 122713129872 is 278921317221.

122713129872 is a `hidden beast` number, since 1 + 227 + 131 + 298 + 7 + 2 = 666.

It is not an unprimeable number, because it can be changed into a prime (122713129871) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1718454 + ... + 1788437.

It is an arithmetic number, because the mean of its divisors is an integer number (4457259732).

Almost surely, 2^122713129872 is an apocalyptic number.

122713129872 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

122713129872 is an abundant number, since it is smaller than the sum of its proper divisors (233867648688).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

122713129872 is an frugal number, since it uses more digits than its factorization.

122713129872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3506920 (or 3506896 counting only the distinct ones).

The product of its digits is 169344, while the sum is 45.

The spelling of 122713129872 in words is "one hundred twenty-two billion, seven hundred thirteen million, one hundred twenty-nine thousand, eight hundred seventy-two".