130431244334021 has 8 divisors (see below), whose sum is σ = 130443747579288. Its totient is φ = 130418741728000.

The previous prime is 130431244334009. The next prime is 130431244334099. The reversal of 130431244334021 is 120433442134031.

It can be written as a sum of positive squares in 4 ways, for example, as 6773063505121 + 123658180828900 = 2602511^2 + 11120170^2 .

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 130431244334021 - 2²⁶ = 130431177225157 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130431244334821) 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, 472368761 + ... + 472644801.

It is an arithmetic number, because the mean of its divisors is an integer number (16305468447411).

Almost surely, 2^{130431244334021} is an apocalyptic number.

It is an amenable number.

130431244334021 is a deficient number, since it is larger than the sum of its proper divisors (12503245267).

130431244334021 is a wasteful number, since it uses less digits than its factorization.

130431244334021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 319623.

The product of its (nonzero) digits is 82944, while the sum is 35.

Adding to 130431244334021 its reverse (120433442134031), we get a palindrome (250864686468052).

The spelling of 130431244334021 in words is "one hundred thirty trillion, four hundred thirty-one billion, two hundred forty-four million, three hundred thirty-four thousand, twenty-one".