12013311312012 has 24 divisors (see below), whose sum is σ = 28031231883312. Its totient is φ = 4004412510400.

The previous prime is 12013311311999. The next prime is 12013311312091. The reversal of 12013311312012 is 21021311331021.

It is a self number, because there is not a number n which added to its sum of digits gives 12013311312012.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 981939 + ... + 4999082.

It is an arithmetic number, because the mean of its divisors is an integer number (1167967995138).

Almost surely, 2^{12013311312012} is an apocalyptic number.

12013311312012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12013311312012 is an abundant number, since it is smaller than the sum of its proper divisors (16017920571300).

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

12013311312012 is a wasteful number, since it uses less digits than its factorization.

12013311312012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6148409 (or 6148407 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 21.

Adding to 12013311312012 its reverse (21021311331021), we get a palindrome (33034622643033).

The spelling of 12013311312012 in words is "twelve trillion, thirteen billion, three hundred eleven million, three hundred twelve thousand, twelve".