131147311 has 4 divisors (see below), whose sum is σ = 136849392. Its totient is φ = 125445232.

The previous prime is 131147297. The next prime is 131147323. The reversal of 131147311 is 113741131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 113741131 = 7 ⋅16248733.

It is a cyclic number.

It is not a de Polignac number, because 131147311 - 2⁷ = 131147183 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 (131147371) 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, 2851006 + ... + 2851051.

It is an arithmetic number, because the mean of its divisors is an integer number (34212348).

Almost surely, 2^131147311 is an apocalyptic number.

131147311 is a deficient number, since it is larger than the sum of its proper divisors (5702081).

131147311 is an equidigital number, since it uses as much as digits as its factorization.

131147311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5702080.

The product of its digits is 252, while the sum is 22.

The square root of 131147311 is about 11451.9566450454. The cubic root of 131147311 is about 508.0656070329.

Adding to 131147311 its reverse (113741131), we get a palindrome (244888442).

The spelling of 131147311 in words is "one hundred thirty-one million, one hundred forty-seven thousand, three hundred eleven".