20131296012 has 24 divisors (see below), whose sum is σ = 52192249200. Its totient is φ = 6710431968.

The previous prime is 20131295999. The next prime is 20131296037. The reversal of 20131296012 is 21069213102.

20131296012 is a `hidden beast` number, since 2 + 0 + 1 + 31 + 29 + 601 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 93200337 + ... + 93200552.

It is an arithmetic number, because the mean of its divisors is an integer number (2174677050).

Almost surely, 2^20131296012 is an apocalyptic number.

It is an amenable number.

20131296012 is an abundant number, since it is smaller than the sum of its proper divisors (32060953188).

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

20131296012 is a wasteful number, since it uses less digits than its factorization.

20131296012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186400902 (or 186400894 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The spelling of 20131296012 in words is "twenty billion, one hundred thirty-one million, two hundred ninety-six thousand, twelve".