131332331 has 8 divisors (see below), whose sum is σ = 141531600. Its totient is φ = 121146912.

The previous prime is 131332319. The next prime is 131332339. The reversal of 131332331 is 133233131.

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 131332331 - 2²² = 127138027 is a prime.

It is a super-2 number, since 2×131332331² = 34496362331787122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131332339) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24881 + ... + 29693.

It is an arithmetic number, because the mean of its divisors is an integer number (17691450).

Almost surely, 2^131332331 is an apocalyptic number.

131332331 is a deficient number, since it is larger than the sum of its proper divisors (10199269).

131332331 is a wasteful number, since it uses less digits than its factorization.

131332331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6925.

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

The square root of 131332331 is about 11460.0318934984. The cubic root of 131332331 is about 508.3044176929.

Adding to 131332331 its reverse (133233131), we get a palindrome (264565462).

The spelling of 131332331 in words is "one hundred thirty-one million, three hundred thirty-two thousand, three hundred thirty-one".