12013292928 has 128 divisors (see below), whose sum is σ = 39274341120. Its totient is φ = 3168331776.

The previous prime is 12013292911. The next prime is 12013292933. The reversal of 12013292928 is 82929231021.

It is a tau number, because it is divible by the number of its divisors (128).

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 136950 + ... + 206837.

It is an arithmetic number, because the mean of its divisors is an integer number (306830790).

Almost surely, 2^12013292928 is an apocalyptic number.

It is an amenable number.

12013292928 is an abundant number, since it is smaller than the sum of its proper divisors (27261048192).

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

12013292928 is a wasteful number, since it uses less digits than its factorization.

12013292928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 343824 (or 343812 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 39.

The spelling of 12013292928 in words is "twelve billion, thirteen million, two hundred ninety-two thousand, nine hundred twenty-eight".