130131031332221 has 4 divisors (see below), whose sum is σ = 131124397983744. Its totient is φ = 129137664680700.

The previous prime is 130131031332217. The next prime is 130131031332317. The reversal of 130131031332221 is 122233130131031.

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 130131031332221 - 2² = 130131031332217 is a prime.

It is a super-2 number, since 2×130131031332221² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130131031332521) 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, 496683325565 + ... + 496683325826.

It is an arithmetic number, because the mean of its divisors is an integer number (32781099495936).

Almost surely, 2^{130131031332221} is an apocalyptic number.

It is an amenable number.

130131031332221 is a deficient number, since it is larger than the sum of its proper divisors (993366651523).

130131031332221 is an equidigital number, since it uses as much as digits as its factorization.

130131031332221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 993366651522.

The product of its (nonzero) digits is 1944, while the sum is 26.

Adding to 130131031332221 its reverse (122233130131031), we get a palindrome (252364161463252).

The spelling of 130131031332221 in words is "one hundred thirty trillion, one hundred thirty-one billion, thirty-one million, three hundred thirty-two thousand, two hundred twenty-one".