12311033112012 has 12 divisors (see below), whose sum is σ = 28725743928056. Its totient is φ = 4103677704000.

The previous prime is 12311033111977. The next prime is 12311033112029. The reversal of 12311033112012 is 21021133011321.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 12311033112012.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 512959712989 + ... + 512959713012.

Almost surely, 2^{12311033112012} is an apocalyptic number.

12311033112012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12311033112012 is an abundant number, since it is smaller than the sum of its proper divisors (16414710816044).

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

12311033112012 is a wasteful number, since it uses less digits than its factorization.

12311033112012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1025919426008 (or 1025919426006 counting only the distinct ones).

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

Adding to 12311033112012 its reverse (21021133011321), we get a palindrome (33332166123333).

The spelling of 12311033112012 in words is "twelve trillion, three hundred eleven billion, thirty-three million, one hundred twelve thousand, twelve".