123742115104 has 48 divisors (see below), whose sum is σ = 247677647616. Its totient is φ = 60840403200.

The previous prime is 123742115089. The next prime is 123742115179. The reversal of 123742115104 is 401511247321.

It is a super-2 number, since 2×123742115104² (a number of 23 digits) contains 22 as substring.

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 in 7 ways as a sum of consecutive naturals, for example, 10673599 + ... + 10685185.

It is an arithmetic number, because the mean of its divisors is an integer number (5159950992).

Almost surely, 2^123742115104 is an apocalyptic number.

It is an amenable number.

123742115104 is an abundant number, since it is smaller than the sum of its proper divisors (123935532512).

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

123742115104 is a wasteful number, since it uses less digits than its factorization.

123742115104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17129 (or 17121 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 31.

The spelling of 123742115104 in words is "one hundred twenty-three billion, seven hundred forty-two million, one hundred fifteen thousand, one hundred four".