131303303 has 4 divisors (see below), whose sum is σ = 131481720. Its totient is φ = 131124888.

The previous prime is 131303273. The next prime is 131303309. The reversal of 131303303 is 303303131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 303303131 = 457 ⋅663683.

It is a cyclic number.

It is not a de Polignac number, because 131303303 - 2⁶ = 131303239 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 (131303309) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 88100 + ... + 89577.

It is an arithmetic number, because the mean of its divisors is an integer number (32870430).

Almost surely, 2^131303303 is an apocalyptic number.

131303303 is a deficient number, since it is larger than the sum of its proper divisors (178417).

131303303 is an equidigital number, since it uses as much as digits as its factorization.

131303303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178416.

The product of its (nonzero) digits is 243, while the sum is 17.

The square root of 131303303 is about 11458.7653348867. The cubic root of 131303303 is about 508.2669652551.

Adding to 131303303 its reverse (303303131), we get a palindrome (434606434).

The spelling of 131303303 in words is "one hundred thirty-one million, three hundred three thousand, three hundred three".