131118971 has 2 divisors, whose sum is σ = 131118972. Its totient is φ = 131118970.

The previous prime is 131118941. The next prime is 131119007. The reversal of 131118971 is 179811131.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 131118971 - 2¹⁰ = 131117947 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (131118931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65559485 + 65559486.

It is an arithmetic number, because the mean of its divisors is an integer number (65559486).

Almost surely, 2^131118971 is an apocalyptic number.

131118971 is a deficient number, since it is larger than the sum of its proper divisors (1).

131118971 is an equidigital number, since it uses as much as digits as its factorization.

131118971 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1512, while the sum is 32.

The square root of 131118971 is about 11450.7192350524. The cubic root of 131118971 is about 508.0290079432.

The spelling of 131118971 in words is "one hundred thirty-one million, one hundred eighteen thousand, nine hundred seventy-one".