131201404309999 has 4 divisors (see below), whose sum is σ = 132081950647800. Its totient is φ = 130320857972200.

The previous prime is 131201404309979. The next prime is 131201404310003. The reversal of 131201404309999 is 999903404102131.

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 131201404309999 - 2²³ = 131201395921391 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 (131201404309979) 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, 440273168677 + ... + 440273168974.

It is an arithmetic number, because the mean of its divisors is an integer number (33020487661950).

Almost surely, 2^{131201404309999} is an apocalyptic number.

131201404309999 is a deficient number, since it is larger than the sum of its proper divisors (880546337801).

131201404309999 is an equidigital number, since it uses as much as digits as its factorization.

131201404309999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 880546337800.

The product of its (nonzero) digits is 1889568, while the sum is 55.

The spelling of 131201404309999 in words is "one hundred thirty-one trillion, two hundred one billion, four hundred four million, three hundred nine thousand, nine hundred ninety-nine".