130331 has 6 divisors (see below), whose sum is σ = 135420. Its totient is φ = 125396.

The previous prime is 130307. The next prime is 130337. The reversal of 130331 is 133031.

It is not a de Polignac number, because 130331 - 2⁶ = 130267 is a prime.

It is a super-2 number, since 2×130331² = 33972339122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (130337) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2180 + ... + 2238.

It is an arithmetic number, because the mean of its divisors is an integer number (22570).

2¹³⁰³³¹ is an apocalyptic number.

130331 is a deficient number, since it is larger than the sum of its proper divisors (5089).

130331 is an frugal number, since it uses more digits than its factorization.

130331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153 (or 106 counting only the distinct ones).

The product of its (nonzero) digits is 27, while the sum is 11.

The square root of 130331 is about 361.0138501498. The cubic root of 130331 is about 50.7009280810.

Adding to 130331 its reverse (133031), we get a palindrome (263362).

The spelling of 130331 in words is "one hundred thirty thousand, three hundred thirty-one".