13103978128 has 20 divisors (see below), whose sum is σ = 25421242480. Its totient is φ = 6543657504.

The previous prime is 13103978119. The next prime is 13103978137. The reversal of 13103978128 is 82187930131.

It is an interprime number because it is at equal distance from previous prime (13103978119) and next prime (13103978137).

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, 507738 + ... + 532921.

It is an arithmetic number, because the mean of its divisors is an integer number (1271062124).

Almost surely, 2^13103978128 is an apocalyptic number.

It is an amenable number.

13103978128 is a deficient number, since it is larger than the sum of its proper divisors (12317264352).

13103978128 is a wasteful number, since it uses less digits than its factorization.

13103978128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1041454 (or 1041448 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 43.

The spelling of 13103978128 in words is "thirteen billion, one hundred three million, nine hundred seventy-eight thousand, one hundred twenty-eight".