131315303 has 8 divisors (see below), whose sum is σ = 156599808. Its totient is φ = 107662104.

The previous prime is 131315299. The next prime is 131315311. The reversal of 131315303 is 303513131.

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 131315303 - 2² = 131315299 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131315323) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 407651 + ... + 407972.

It is an arithmetic number, because the mean of its divisors is an integer number (19574976).

Almost surely, 2^131315303 is an apocalyptic number.

131315303 is a deficient number, since it is larger than the sum of its proper divisors (25284505).

131315303 is an equidigital number, since it uses as much as digits as its factorization.

131315303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 815653.

The product of its (nonzero) digits is 405, while the sum is 20.

The square root of 131315303 is about 11459.2889395459. The cubic root of 131315303 is about 508.2824485361.

Adding to 131315303 its reverse (303513131), we get a palindrome (434828434).

The spelling of 131315303 in words is "one hundred thirty-one million, three hundred fifteen thousand, three hundred three".