131303209019 has 4 divisors (see below), whose sum is σ = 131392471680. Its totient is φ = 131213946360.

The previous prime is 131303208991. The next prime is 131303209033. The reversal of 131303209019 is 910902303131.

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 131303209019 - 2²⁴ = 131286431803 is a prime.

It is a super-2 number, since 2×131303209019² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131303209619) 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, 44629124 + ... + 44632065.

It is an arithmetic number, because the mean of its divisors is an integer number (32848117920).

Almost surely, 2^131303209019 is an apocalyptic number.

131303209019 is a deficient number, since it is larger than the sum of its proper divisors (89262661).

131303209019 is an equidigital number, since it uses as much as digits as its factorization.

131303209019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89262660.

The product of its (nonzero) digits is 4374, while the sum is 32.

The spelling of 131303209019 in words is "one hundred thirty-one billion, three hundred three million, two hundred nine thousand, nineteen".