130131031331221 has 4 divisors (see below), whose sum is σ = 131778259576000. Its totient is φ = 128483803086444.

The previous prime is 130131031331219. The next prime is 130131031331269. The reversal of 130131031331221 is 122133130131031.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 130131031331221 - 2¹ = 130131031331219 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 (130131031331321) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 823614122271 + ... + 823614122428.

It is an arithmetic number, because the mean of its divisors is an integer number (32944564894000).

Almost surely, 2^{130131031331221} is an apocalyptic number.

It is an amenable number.

130131031331221 is a deficient number, since it is larger than the sum of its proper divisors (1647228244779).

130131031331221 is an equidigital number, since it uses as much as digits as its factorization.

130131031331221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1647228244778.

The product of its (nonzero) digits is 972, while the sum is 25.

Adding to 130131031331221 its reverse (122133130131031), we get a palindrome (252264161462252).

The spelling of 130131031331221 in words is "one hundred thirty trillion, one hundred thirty-one billion, thirty-one million, three hundred thirty-one thousand, two hundred twenty-one".