12311033133344 has 48 divisors (see below), whose sum is σ = 26813146481856. Its totient is φ = 5517108307200.

The previous prime is 12311033133341. The next prime is 12311033133359. The reversal of 12311033133344 is 44333133011321.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a self number, because there is not a number n which added to its sum of digits gives 12311033133344.

It is not an unprimeable number, because it can be changed into a prime (12311033133341) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 246274487 + ... + 246324470.

It is an arithmetic number, because the mean of its divisors is an integer number (558607218372).

Almost surely, 2^{12311033133344} is an apocalyptic number.

It is an amenable number.

12311033133344 is an abundant number, since it is smaller than the sum of its proper divisors (14502113348512).

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

12311033133344 is a wasteful number, since it uses less digits than its factorization.

12311033133344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 492599049 (or 492599041 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 32.

Adding to 12311033133344 its reverse (44333133011321), we get a palindrome (56644166144665).

The spelling of 12311033133344 in words is "twelve trillion, three hundred eleven billion, thirty-three million, one hundred thirty-three thousand, three hundred forty-four".