131320335 has 32 divisors (see below), whose sum is σ = 218518272. Its totient is φ = 67288320.

The previous prime is 131320327. The next prime is 131320337. The reversal of 131320335 is 533023131.

It is not a de Polignac number, because 131320335 - 2³ = 131320327 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131320337) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 39612 + ... + 42798.

It is an arithmetic number, because the mean of its divisors is an integer number (6828696).

Almost surely, 2^131320335 is an apocalyptic number.

131320335 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

131320335 is a deficient number, since it is larger than the sum of its proper divisors (87197937).

131320335 is a wasteful number, since it uses less digits than its factorization.

131320335 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3303.

The product of its (nonzero) digits is 810, while the sum is 21.

The square root of 131320335 is about 11459.5084973135. The cubic root of 131320335 is about 508.2889409112.

Adding to 131320335 its reverse (533023131), we get a palindrome (664343466).

The spelling of 131320335 in words is "one hundred thirty-one million, three hundred twenty thousand, three hundred thirty-five".