131344309823 has 4 divisors (see below), whose sum is σ = 131347019760. Its totient is φ = 131341599888.

The previous prime is 131344309813. The next prime is 131344309843. The reversal of 131344309823 is 328903443131.

It is a happy number.

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 131344309823 - 2¹⁴ = 131344293439 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131344309813) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1280918 + ... + 1379651.

It is an arithmetic number, because the mean of its divisors is an integer number (32836754940).

Almost surely, 2^131344309823 is an apocalyptic number.

131344309823 is a deficient number, since it is larger than the sum of its proper divisors (2709937).

131344309823 is an equidigital number, since it uses as much as digits as its factorization.

131344309823 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2709936.

The product of its (nonzero) digits is 186624, while the sum is 41.

The spelling of 131344309823 in words is "one hundred thirty-one billion, three hundred forty-four million, three hundred nine thousand, eight hundred twenty-three".