131302331 has 8 divisors (see below), whose sum is σ = 144222720. Its totient is φ = 118982952.

The previous prime is 131302321. The next prime is 131302333. The reversal of 131302331 is 133203131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 131302331 - 2²² = 127108027 is a prime.

It is a super-2 number, since 2×131302331² = 34480604252067122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131302333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 149795 + ... + 150668.

It is an arithmetic number, because the mean of its divisors is an integer number (18027840).

Almost surely, 2^131302331 is an apocalyptic number.

131302331 is a deficient number, since it is larger than the sum of its proper divisors (12920389).

131302331 is a wasteful number, since it uses less digits than its factorization.

131302331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 300505.

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

The square root of 131302331 is about 11458.7229218618. The cubic root of 131302331 is about 508.2657110681.

Adding to 131302331 its reverse (133203131), we get a palindrome (264505462).

The spelling of 131302331 in words is "one hundred thirty-one million, three hundred two thousand, three hundred thirty-one".