131104365499 has 4 divisors (see below), whose sum is σ = 131106384864. Its totient is φ = 131102346136.

The previous prime is 131104365487. The next prime is 131104365533. The reversal of 131104365499 is 994563401131.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 131104365499 - 2¹⁵ = 131104332731 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131104365419) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 908947 + ... + 1043260.

It is an arithmetic number, because the mean of its divisors is an integer number (32776596216).

Almost surely, 2^131104365499 is an apocalyptic number.

131104365499 is a deficient number, since it is larger than the sum of its proper divisors (2019365).

131104365499 is an equidigital number, since it uses as much as digits as its factorization.

131104365499 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2019364.

The product of its (nonzero) digits is 349920, while the sum is 46.

The spelling of 131104365499 in words is "one hundred thirty-one billion, one hundred four million, three hundred sixty-five thousand, four hundred ninety-nine".