3121230202112 has 72 divisors (see below), whose sum is σ = 6815912261760. Its totient is φ = 1414721454080.

The previous prime is 3121230202019. The next prime is 3121230202127. The reversal of 3121230202112 is 2112020321213.

It is a super-2 number, since 2×3121230202112² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 575912 + ... + 2564007.

It is an arithmetic number, because the mean of its divisors is an integer number (94665448080).

Almost surely, 2^{3121230202112} is an apocalyptic number.

3121230202112 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

3121230202112 is an abundant number, since it is smaller than the sum of its proper divisors (3694682059648).

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

3121230202112 is a wasteful number, since it uses less digits than its factorization.

3121230202112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3140299 (or 3140285 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 3121230202112 its reverse (2112020321213), we get a palindrome (5233250523325).

The spelling of 3121230202112 in words is "three trillion, one hundred twenty-one billion, two hundred thirty million, two hundred two thousand, one hundred twelve".