3130131103221 has 32 divisors (see below), whose sum is σ = 4481908623360. Its totient is φ = 1936125644544.

The previous prime is 3130131103213. The next prime is 3130131103237. The reversal of 3130131103221 is 1223011310313.

It is a happy number.

It is not a de Polignac number, because 3130131103221 - 2³ = 3130131103213 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3130131103271) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1986526 + ... + 3194768.

It is an arithmetic number, because the mean of its divisors is an integer number (140059644480).

Almost surely, 2^{3130131103221} is an apocalyptic number.

It is an amenable number.

3130131103221 is a deficient number, since it is larger than the sum of its proper divisors (1351777520139).

3130131103221 is a wasteful number, since it uses less digits than its factorization.

3130131103221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1208985.

The product of its (nonzero) digits is 324, while the sum is 21.

Adding to 3130131103221 its reverse (1223011310313), we get a palindrome (4353142413534).

The spelling of 3130131103221 in words is "three trillion, one hundred thirty billion, one hundred thirty-one million, one hundred three thousand, two hundred twenty-one".