131330312 has 8 divisors (see below), whose sum is σ = 246244350. Its totient is φ = 65665152.

The previous prime is 131330281. The next prime is 131330323. The reversal of 131330312 is 213033131.

It can be written as a sum of positive squares in only one way, i.e., 101888836 + 29441476 = 10094^2 + 5426^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8208137 + ... + 8208152.

Almost surely, 2^131330312 is an apocalyptic number.

It is an amenable number.

131330312 is a deficient number, since it is larger than the sum of its proper divisors (114914038).

131330312 is a wasteful number, since it uses less digits than its factorization.

131330312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16416295 (or 16416291 counting only the distinct ones).

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

The square root of 131330312 is about 11459.9438043997. The cubic root of 131330312 is about 508.3018129221.

Adding to 131330312 its reverse (213033131), we get a palindrome (344363443).

The spelling of 131330312 in words is "one hundred thirty-one million, three hundred thirty thousand, three hundred twelve".