3131020110112 has 24 divisors (see below), whose sum is σ = 6526795598316. Its totient is φ = 1473421228032.

The previous prime is 3131020110091. The next prime is 3131020110121. The reversal of 3131020110112 is 2110110201313.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 2388520794256 + 742499315856 = 1545484^2 + 861684^2 .

It is a Harshad number since it is a multiple of its sum of digits (16).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2877775293 + ... + 2877776380.

Almost surely, 2^{3131020110112} is an apocalyptic number.

3131020110112 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

3131020110112 is an abundant number, since it is smaller than the sum of its proper divisors (3395775488204).

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

3131020110112 is a wasteful number, since it uses less digits than its factorization.

3131020110112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5755551700 (or 5755551692 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 3131020110112 its reverse (2110110201313), we get a palindrome (5241130311425).

The spelling of 3131020110112 in words is "three trillion, one hundred thirty-one billion, twenty million, one hundred ten thousand, one hundred twelve".