123913298972 has 24 divisors (see below), whose sum is σ = 219928957920. Its totient is φ = 61076664320.

The previous prime is 123913298953. The next prime is 123913298981. The reversal of 123913298972 is 279892319321.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2914604 + ... + 2956812.

It is an arithmetic number, because the mean of its divisors is an integer number (9163706580).

Almost surely, 2^123913298972 is an apocalyptic number.

It is an amenable number.

123913298972 is a deficient number, since it is larger than the sum of its proper divisors (96015658948).

123913298972 is a wasteful number, since it uses less digits than its factorization.

123913298972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52621 (or 52619 counting only the distinct ones).

The product of its digits is 2939328, while the sum is 56.

The spelling of 123913298972 in words is "one hundred twenty-three billion, nine hundred thirteen million, two hundred ninety-eight thousand, nine hundred seventy-two".