12390104128 has 14 divisors (see below), whose sum is σ = 24586613006. Its totient is φ = 6195052032.

The previous prime is 12390104113. The next prime is 12390104131. The reversal of 12390104128 is 82140109321.

It can be written as a sum of positive squares in only one way, i.e., 12336989184 + 53114944 = 111072^2 + 7288^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 12390104128.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 96797625 + ... + 96797752.

Almost surely, 2^12390104128 is an apocalyptic number.

It is an amenable number.

12390104128 is a deficient number, since it is larger than the sum of its proper divisors (12196508878).

12390104128 is an equidigital number, since it uses as much as digits as its factorization.

12390104128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193595389 (or 193595379 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 31.

The spelling of 12390104128 in words is "twelve billion, three hundred ninety million, one hundred four thousand, one hundred twenty-eight".