13012031220012 has 36 divisors (see below), whose sum is σ = 35881661850216. Its totient is φ = 3943039763520.

The previous prime is 13012031219989. The next prime is 13012031220047. The reversal of 13012031220012 is 21002213021031.

13012031220012 is a `hidden beast` number, since 1 + 30 + 120 + 312 + 200 + 1 + 2 = 666.

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

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16429331953 + ... + 16429332744.

Almost surely, 2^{13012031220012} is an apocalyptic number.

13012031220012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13012031220012 is an abundant number, since it is smaller than the sum of its proper divisors (22869630630204).

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

13012031220012 is a wasteful number, since it uses less digits than its factorization.

13012031220012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32858664718 (or 32858664713 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 13012031220012 its reverse (21002213021031), we get a palindrome (34014244241043).

The spelling of 13012031220012 in words is "thirteen trillion, twelve billion, thirty-one million, two hundred twenty thousand, twelve".