3131231222112 has 96 divisors (see below), whose sum is σ = 9593559585792. Its totient is φ = 875602642944.

The previous prime is 3131231222089. The next prime is 3131231222173. The reversal of 3131231222112 is 2112221321313.

3131231222112 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (96).

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

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 49538313 + ... + 49601480.

It is an arithmetic number, because the mean of its divisors is an integer number (99932912352).

Almost surely, 2^{3131231222112} is an apocalyptic number.

3131231222112 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

3131231222112 is an abundant number, since it is smaller than the sum of its proper divisors (6462328363680).

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

3131231222112 is a wasteful number, since it uses less digits than its factorization.

3131231222112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99139860 (or 99139852 counting only the distinct ones).

The product of its digits is 864, while the sum is 24.

Adding to 3131231222112 its reverse (2112221321313), we get a palindrome (5243452543425).

The spelling of 3131231222112 in words is "three trillion, one hundred thirty-one billion, two hundred thirty-one million, two hundred twenty-two thousand, one hundred twelve".