131113019 has 2 divisors, whose sum is σ = 131113020. Its totient is φ = 131113018.

The previous prime is 131113013. The next prime is 131113069. The reversal of 131113019 is 910311131.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 131113019 - 2²⁴ = 114335803 is a prime.

It is a super-2 number, since 2×131113019² = 34381247502588722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (131113013) 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, 65556509 + 65556510.

It is an arithmetic number, because the mean of its divisors is an integer number (65556510).

Almost surely, 2^131113019 is an apocalyptic number.

131113019 is a deficient number, since it is larger than the sum of its proper divisors (1).

131113019 is an equidigital number, since it uses as much as digits as its factorization.

131113019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 81, while the sum is 20.

The square root of 131113019 is about 11450.4593357647. The cubic root of 131113019 is about 508.0213206895.

The spelling of 131113019 in words is "one hundred thirty-one million, one hundred thirteen thousand, nineteen".