131255311 has 4 divisors (see below), whose sum is σ = 143187624. Its totient is φ = 119323000.

The previous prime is 131255303. The next prime is 131255329. The reversal of 131255311 is 113552131.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 131255311 - 2³ = 131255303 is a prime.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131255911) 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, 5966140 + ... + 5966161.

It is an arithmetic number, because the mean of its divisors is an integer number (35796906).

Almost surely, 2^131255311 is an apocalyptic number.

131255311 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

131255311 is a deficient number, since it is larger than the sum of its proper divisors (11932313).

131255311 is a wasteful number, since it uses less digits than its factorization.

131255311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11932312.

The product of its digits is 450, while the sum is 22.

The square root of 131255311 is about 11456.6710260878. The cubic root of 131255311 is about 508.2050330211.

The spelling of 131255311 in words is "one hundred thirty-one million, two hundred fifty-five thousand, three hundred eleven".