131342311 has 16 divisors (see below), whose sum is σ = 137944800. Its totient is φ = 124945920.

The previous prime is 131342287. The next prime is 131342347. The reversal of 131342311 is 113243131.

It is a cyclic number.

It is not a de Polignac number, because 131342311 - 2¹¹ = 131340263 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 (131342371) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 376165 + ... + 376513.

It is an arithmetic number, because the mean of its divisors is an integer number (8621550).

Almost surely, 2^131342311 is an apocalyptic number.

131342311 is a deficient number, since it is larger than the sum of its proper divisors (6602489).

131342311 is a wasteful number, since it uses less digits than its factorization.

131342311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 594.

The product of its digits is 216, while the sum is 19.

The square root of 131342311 is about 11460.4673115890. The cubic root of 131342311 is about 508.3172927901.

Adding to 131342311 its reverse (113243131), we get a palindrome (244585442).

The spelling of 131342311 in words is "one hundred thirty-one million, three hundred forty-two thousand, three hundred eleven".