130231331 has 4 divisors (see below), whose sum is σ = 130815552. Its totient is φ = 129647112.

The previous prime is 130231307. The next prime is 130231333. The reversal of 130231331 is 133132031.

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

It is a cyclic number.

It is not a de Polignac number, because 130231331 - 2²⁶ = 63122467 is a prime.

It is a super-2 number, since 2×130231331² = 33920399148063122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (130231333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 291776 + ... + 292221.

It is an arithmetic number, because the mean of its divisors is an integer number (32703888).

Almost surely, 2^130231331 is an apocalyptic number.

130231331 is a deficient number, since it is larger than the sum of its proper divisors (584221).

130231331 is an equidigital number, since it uses as much as digits as its factorization.

130231331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 584220.

The product of its (nonzero) digits is 162, while the sum is 17.

The square root of 130231331 is about 11411.8942774633. The cubic root of 130231331 is about 506.8800048513.

Adding to 130231331 its reverse (133132031), we get a palindrome (263363362).

The spelling of 130231331 in words is "one hundred thirty million, two hundred thirty-one thousand, three hundred thirty-one".