131311311 has 16 divisors (see below), whose sum is σ = 177210720. Its totient is φ = 86481920.

The previous prime is 131311309. The next prime is 131311321. The reversal of 131311311 is 113113131.

It is a cyclic number.

It is not a de Polignac number, because 131311311 - 2¹ = 131311309 is a prime.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131311321) 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, 172171 + ... + 172931.

It is an arithmetic number, because the mean of its divisors is an integer number (11075670).

Almost surely, 2^131311311 is an apocalyptic number.

131311311 is a deficient number, since it is larger than the sum of its proper divisors (45899409).

131311311 is a wasteful number, since it uses less digits than its factorization.

131311311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1386.

The product of its digits is 27, while the sum is 15.

The square root of 131311311 is about 11459.1147563850. The cubic root of 131311311 is about 508.2772978693.

Adding to 131311311 its reverse (113113131), we get a palindrome (244424442).

The spelling of 131311311 in words is "one hundred thirty-one million, three hundred eleven thousand, three hundred eleven".