131021440244239 has 8 divisors (see below), whose sum is σ = 133434967760640. Its totient is φ = 128614340232600.

The previous prime is 131021440244197. The next prime is 131021440244353. The reversal of 131021440244239 is 932442044120131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 131021440244239 - 2¹⁷ = 131021440113167 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 (131021440244839) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1606835047 + ... + 1606916584.

It is an arithmetic number, because the mean of its divisors is an integer number (16679370970080).

Almost surely, 2^{131021440244239} is an apocalyptic number.

131021440244239 is a deficient number, since it is larger than the sum of its proper divisors (2413527516401).

131021440244239 is an equidigital number, since it uses as much as digits as its factorization.

131021440244239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3213752381.

The product of its (nonzero) digits is 165888, while the sum is 40.

The spelling of 131021440244239 in words is "one hundred thirty-one trillion, twenty-one billion, four hundred forty million, two hundred forty-four thousand, two hundred thirty-nine".