131237131 has 2 divisors, whose sum is σ = 131237132. Its totient is φ = 131237130.

The previous prime is 131237111. The next prime is 131237143. The reversal of 131237131 is 131732131.

It is a strong prime.

It is an emirp because it is prime and its reverse (131732131) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 131237131 - 2⁷ = 131237003 is a prime.

It is a super-2 number, since 2×131237131² = 34446369106222322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (131237111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65618565 + 65618566.

It is an arithmetic number, because the mean of its divisors is an integer number (65618566).

Almost surely, 2^131237131 is an apocalyptic number.

131237131 is a deficient number, since it is larger than the sum of its proper divisors (1).

131237131 is an equidigital number, since it uses as much as digits as its factorization.

131237131 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 378, while the sum is 22.

The square root of 131237131 is about 11455.8775744157. The cubic root of 131237131 is about 508.1815683347.

Adding to 131237131 its reverse (131732131), we get a palindrome (262969262).

The spelling of 131237131 in words is "one hundred thirty-one million, two hundred thirty-seven thousand, one hundred thirty-one".