3121233320112 has 20 divisors (see below), whose sum is σ = 8063186077080. Its totient is φ = 1040411106688.

The previous prime is 3121233320111. The next prime is 3121233320263. The reversal of 3121233320112 is 2110233321213.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (3121233320111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32512847037 + ... + 32512847132.

It is an arithmetic number, because the mean of its divisors is an integer number (403159303854).

Almost surely, 2^{3121233320112} is an apocalyptic number.

It is an amenable number.

3121233320112 is an abundant number, since it is smaller than the sum of its proper divisors (4941952756968).

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

3121233320112 is a wasteful number, since it uses less digits than its factorization.

3121233320112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65025694180 (or 65025694174 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 24.

Adding to 3121233320112 its reverse (2110233321213), we get a palindrome (5231466641325).

The spelling of 3121233320112 in words is "three trillion, one hundred twenty-one billion, two hundred thirty-three million, three hundred twenty thousand, one hundred twelve".