130320031331 has 4 divisors (see below), whose sum is σ = 148937178672. Its totient is φ = 111702883992.

The previous prime is 130320031319. The next prime is 130320031381. The reversal of 130320031331 is 133130023031.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 130320031331 - 2⁶ = 130320031267 is a prime.

It is a super-2 number, since 2×130320031331² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (130320031381) 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, 9308573660 + ... + 9308573673.

It is an arithmetic number, because the mean of its divisors is an integer number (37234294668).

Almost surely, 2^130320031331 is an apocalyptic number.

130320031331 is a deficient number, since it is larger than the sum of its proper divisors (18617147341).

130320031331 is an equidigital number, since it uses as much as digits as its factorization.

130320031331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18617147340.

The product of its (nonzero) digits is 486, while the sum is 20.

Adding to 130320031331 its reverse (133130023031), we get a palindrome (263450054362).

The spelling of 130320031331 in words is "one hundred thirty billion, three hundred twenty million, thirty-one thousand, three hundred thirty-one".