3103131303221 has 16 divisors (see below), whose sum is σ = 3125685287088. Its totient is φ = 3080641536000.

The previous prime is 3103131303133. The next prime is 3103131303269. The reversal of 3103131303221 is 1223031313013.

It can be written as a sum of positive squares in 8 ways, for example, as 37781640625 + 3065349662596 = 194375^2 + 1750814^2 .

It is a cyclic number.

It is not a de Polignac number, because 3103131303221 - 2²⁶ = 3103064194357 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3103131303421) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 292715321 + ... + 292725921.

It is an arithmetic number, because the mean of its divisors is an integer number (195355330443).

Almost surely, 2^{3103131303221} is an apocalyptic number.

It is an amenable number.

3103131303221 is a deficient number, since it is larger than the sum of its proper divisors (22553983867).

3103131303221 is a wasteful number, since it uses less digits than its factorization.

3103131303221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13432.

The product of its (nonzero) digits is 972, while the sum is 23.

Adding to 3103131303221 its reverse (1223031313013), we get a palindrome (4326162616234).

The spelling of 3103131303221 in words is "three trillion, one hundred three billion, one hundred thirty-one million, three hundred three thousand, two hundred twenty-one".