3103431121 has 6 divisors (see below), whose sum is σ = 3610113810. Its totient is φ = 2660083776.

The previous prime is 3103431119. The next prime is 3103431137. The reversal of 3103431121 is 1211343013.

It can be written as a sum of positive squares in only one way, i.e., 2969705025 + 133726096 = 54495^2 + 11564^2 .

It is not a de Polignac number, because 3103431121 - 2¹ = 3103431119 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3103431161) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 31667616 + ... + 31667713.

It is an arithmetic number, because the mean of its divisors is an integer number (601685635).

Almost surely, 2^3103431121 is an apocalyptic number.

It is an amenable number.

3103431121 is a deficient number, since it is larger than the sum of its proper divisors (506682689).

3103431121 is an equidigital number, since it uses as much as digits as its factorization.

3103431121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63335343 (or 63335336 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 3103431121 is about 55708.4474833036. The cubic root of 3103431121 is about 1458.6374855034.

Adding to 3103431121 its reverse (1211343013), we get a palindrome (4314774134).

The spelling of 3103431121 in words is "three billion, one hundred three million, four hundred thirty-one thousand, one hundred twenty-one".