131230320321 has 8 divisors (see below), whose sum is σ = 174975918784. Its totient is φ = 87485801040.

The previous prime is 131230320293. The next prime is 131230320359. The reversal of 131230320321 is 123023032131.

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

It is not a de Polignac number, because 131230320321 - 2¹⁴ = 131230303937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131230320721) 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, 77991 + ... + 518211.

It is an arithmetic number, because the mean of its divisors is an integer number (21871989848).

Almost surely, 2^131230320321 is an apocalyptic number.

It is an amenable number.

131230320321 is a deficient number, since it is larger than the sum of its proper divisors (43745598463).

131230320321 is an equidigital number, since it uses as much as digits as its factorization.

131230320321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 539591.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 131230320321 its reverse (123023032131), we get a palindrome (254253352452).

The spelling of 131230320321 in words is "one hundred thirty-one billion, two hundred thirty million, three hundred twenty thousand, three hundred twenty-one".