123957138192 has 40 divisors (see below), whose sum is σ = 327669649824. Its totient is φ = 40358137344.

The previous prime is 123957138169. The next prime is 123957138211. The reversal of 123957138192 is 291831759321.

It is a happy number.

123957138192 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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, 30026313 + ... + 30030440.

Almost surely, 2^123957138192 is an apocalyptic number.

123957138192 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

123957138192 is an abundant number, since it is smaller than the sum of its proper divisors (203712511632).

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

123957138192 is a wasteful number, since it uses less digits than its factorization.

123957138192 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60056807 (or 60056801 counting only the distinct ones).

The product of its digits is 816480, while the sum is 51.

The spelling of 123957138192 in words is "one hundred twenty-three billion, nine hundred fifty-seven million, one hundred thirty-eight thousand, one hundred ninety-two".