123956188232 has 12 divisors (see below), whose sum is σ = 232419720105. Its totient is φ = 61977596208.

The previous prime is 123956188231. The next prime is 123956188241. The reversal of 123956188232 is 232881659321.

It is a happy number.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 2 ways, for example, as 105889064836 + 18067123396 = 325406^2 + 134414^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=248954.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123956188231) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 933578 + ... + 1058054.

Almost surely, 2^123956188232 is an apocalyptic number.

It is an amenable number.

123956188232 is a deficient number, since it is larger than the sum of its proper divisors (108463531873).

123956188232 is an frugal number, since it uses more digits than its factorization.

123956188232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 248960 (or 124479 counting only the distinct ones).

The product of its digits is 1244160, while the sum is 50.

Multiplying 123956188232 by its sum of digits (50), we get a square (6197809411600 = 2489540²).

The spelling of 123956188232 in words is "one hundred twenty-three billion, nine hundred fifty-six million, one hundred eighty-eight thousand, two hundred thirty-two".