131302144321 has 12 divisors (see below), whose sum is σ = 136026687420. Its totient is φ = 126590990400.

The previous prime is 131302144291. The next prime is 131302144373. The reversal of 131302144321 is 123441203131.

It can be written as a sum of positive squares in 6 ways, for example, as 6647956225 + 124654188096 = 81535^2 + 353064^2 .

It is not a de Polignac number, because 131302144321 - 2²³ = 131293755713 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131302144921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16614471 + ... + 16622371.

It is an arithmetic number, because the mean of its divisors is an integer number (11335557285).

Almost surely, 2^131302144321 is an apocalyptic number.

It is an amenable number.

131302144321 is a deficient number, since it is larger than the sum of its proper divisors (4724543099).

131302144321 is an frugal number, since it uses more digits than its factorization.

131302144321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9444 (or 8687 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 131302144321 its reverse (123441203131), we get a palindrome (254743347452).

The spelling of 131302144321 in words is "one hundred thirty-one billion, three hundred two million, one hundred forty-four thousand, three hundred twenty-one".