123978630932 has 12 divisors (see below), whose sum is σ = 233652035316. Its totient is φ = 57220906560.

The previous prime is 123978630913. The next prime is 123978630943. The reversal of 123978630932 is 239036879321.

It can be written as a sum of positive squares in 2 ways, for example, as 74487509776 + 49491121156 = 272924^2 + 222466^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1192102169 + ... + 1192102272.

It is an arithmetic number, because the mean of its divisors is an integer number (19471002943).

Almost surely, 2^123978630932 is an apocalyptic number.

It is an amenable number.

123978630932 is a deficient number, since it is larger than the sum of its proper divisors (109673404384).

123978630932 is a wasteful number, since it uses less digits than its factorization.

123978630932 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2384204458 (or 2384204456 counting only the distinct ones).

The product of its (nonzero) digits is 2939328, while the sum is 53.

The spelling of 123978630932 in words is "one hundred twenty-three billion, nine hundred seventy-eight million, six hundred thirty thousand, nine hundred thirty-two".