123387331872 has 96 divisors (see below), whose sum is σ = 382102769664. Its totient is φ = 34116307200.

The previous prime is 123387331829. The next prime is 123387331897. The reversal of 123387331872 is 278133783321.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2940654 + ... + 2982317.

It is an arithmetic number, because the mean of its divisors is an integer number (3980237184).

Almost surely, 2^123387331872 is an apocalyptic number.

123387331872 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

123387331872 is an abundant number, since it is smaller than the sum of its proper divisors (258715437792).

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

123387331872 is a wasteful number, since it uses less digits than its factorization.

123387331872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5923022 (or 5923014 counting only the distinct ones).

The product of its digits is 1016064, while the sum is 48.

The spelling of 123387331872 in words is "one hundred twenty-three billion, three hundred eighty-seven million, three hundred thirty-one thousand, eight hundred seventy-two".