131045023 has 2 divisors, whose sum is σ = 131045024. Its totient is φ = 131045022.

The previous prime is 131045017. The next prime is 131045041. The reversal of 131045023 is 320540131.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-131045023 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131045093) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65522511 + 65522512.

It is an arithmetic number, because the mean of its divisors is an integer number (65522512).

Almost surely, 2^131045023 is an apocalyptic number.

131045023 is a deficient number, since it is larger than the sum of its proper divisors (1).

131045023 is an equidigital number, since it uses as much as digits as its factorization.

131045023 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 131045023 is about 11447.4898121815. The cubic root of 131045023 is about 507.9334845331.

Adding to 131045023 its reverse (320540131), we get a palindrome (451585154).

The spelling of 131045023 in words is "one hundred thirty-one million, forty-five thousand, twenty-three".