3103131303020 has 24 divisors (see below), whose sum is σ = 7447515127584. Its totient is φ = 1063930732416.

The previous prime is 3103131303001. The next prime is 3103131303043. The reversal of 3103131303020 is 203031313013.

It is a super-2 number, since 2×3103131303020² (a number of 26 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 3103131302983 and 3103131303001.

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, 11082611657 + ... + 11082611936.

It is an arithmetic number, because the mean of its divisors is an integer number (310313130316).

Almost surely, 2^{3103131303020} is an apocalyptic number.

It is an amenable number.

3103131303020 is an abundant number, since it is smaller than the sum of its proper divisors (4344383824564).

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

3103131303020 is a wasteful number, since it uses less digits than its factorization.

3103131303020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22165223609 (or 22165223607 counting only the distinct ones).

The product of its (nonzero) digits is 486, while the sum is 20.

Adding to 3103131303020 its reverse (203031313013), we get a palindrome (3306162616033).

The spelling of 3103131303020 in words is "three trillion, one hundred three billion, one hundred thirty-one million, three hundred three thousand, twenty".