12993149124 has 36 divisors (see below), whose sum is σ = 32851728364. Its totient is φ = 4330003392.

The previous prime is 12993149123. The next prime is 12993149131. The reversal of 12993149124 is 42194139921.

12993149124 is a `hidden beast` number, since 129 + 9 + 31 + 491 + 2 + 4 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 6459336900 + 6533812224 = 80370^2 + 80832^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 12993149124.

It is not an unprimeable number, because it can be changed into a prime (12993149123) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 115434 + ... + 198270.

Almost surely, 2^12993149124 is an apocalyptic number.

It is an amenable number.

12993149124 is an abundant number, since it is smaller than the sum of its proper divisors (19858579240).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12993149124 is a wasteful number, since it uses less digits than its factorization.

12993149124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87204 (or 87199 counting only the distinct ones).

The product of its digits is 139968, while the sum is 45.

The spelling of 12993149124 in words is "twelve billion, nine hundred ninety-three million, one hundred forty-nine thousand, one hundred twenty-four".