3131220210312 has 96 divisors (see below), whose sum is σ = 8677159502400. Its totient is φ = 939632956416.

The previous prime is 3131220210269. The next prime is 3131220210413. The reversal of 3131220210312 is 2130120221313.

It is a super-2 number, since 2×3131220210312² (a number of 26 digits) contains 22 as substring.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 9654487 + ... + 9973542.

It is an arithmetic number, because the mean of its divisors is an integer number (90387078150).

Almost surely, 2^{3131220210312} is an apocalyptic number.

It is an amenable number.

3131220210312 is an abundant number, since it is smaller than the sum of its proper divisors (5545939292088).

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

3131220210312 is a wasteful number, since it uses less digits than its factorization.

3131220210312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19628095 (or 19628074 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 3131220210312 its reverse (2130120221313), we get a palindrome (5261340431625).

The spelling of 3131220210312 in words is "three trillion, one hundred thirty-one billion, two hundred twenty million, two hundred ten thousand, three hundred twelve".