3103131130220 has 72 divisors (see below), whose sum is σ = 7163892971424. Its totient is φ = 1128246592000.

The previous prime is 3103131130217. The next prime is 3103131130241. The reversal of 3103131130220 is 220311313013.

It is a super-2 number, since 2×3103131130220² (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 = 3103131130192 and 3103131130201.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17142785 + ... + 17322855.

It is an arithmetic number, because the mean of its divisors is an integer number (99498513492).

Almost surely, 2^{3103131130220} is an apocalyptic number.

It is an amenable number.

3103131130220 is an abundant number, since it is smaller than the sum of its proper divisors (4060761841204).

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

3103131130220 is a wasteful number, since it uses less digits than its factorization.

3103131130220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187223 (or 187210 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 3103131130220 its reverse (220311313013), we get a palindrome (3323442443233).

The spelling of 3103131130220 in words is "three trillion, one hundred three billion, one hundred thirty-one million, one hundred thirty thousand, two hundred twenty".