131411243 has 2 divisors, whose sum is σ = 131411244. Its totient is φ = 131411242.

The previous prime is 131411237. The next prime is 131411261. The reversal of 131411243 is 342114131.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 131411243 - 2⁴ = 131411227 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (131411743) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65705621 + 65705622.

It is an arithmetic number, because the mean of its divisors is an integer number (65705622).

Almost surely, 2^131411243 is an apocalyptic number.

131411243 is a deficient number, since it is larger than the sum of its proper divisors (1).

131411243 is an equidigital number, since it uses as much as digits as its factorization.

131411243 is an evil number, because the sum of its binary digits is even.

The product of its digits is 288, while the sum is 20.

The square root of 131411243 is about 11463.4742988328. The cubic root of 131411243 is about 508.4062034625.

Adding to 131411243 its reverse (342114131), we get a palindrome (473525374).

The spelling of 131411243 in words is "one hundred thirty-one million, four hundred eleven thousand, two hundred forty-three".