131101343102321 has 4 divisors (see below), whose sum is σ = 131118645649572. Its totient is φ = 131084040555072.

The previous prime is 131101343102291. The next prime is 131101343102341. The reversal of 131101343102321 is 123201343101131.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1503860742400 + 129597482359921 = 1226320^2 + 11384089^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-131101343102321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131101343102341) 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, 8651262260 + ... + 8651277413.

It is an arithmetic number, because the mean of its divisors is an integer number (32779661412393).

Almost surely, 2^{131101343102321} is an apocalyptic number.

It is an amenable number.

131101343102321 is a deficient number, since it is larger than the sum of its proper divisors (17302547251).

131101343102321 is an equidigital number, since it uses as much as digits as its factorization.

131101343102321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17302547250.

The product of its (nonzero) digits is 1296, while the sum is 26.

Adding to 131101343102321 its reverse (123201343101131), we get a palindrome (254302686203452).

The spelling of 131101343102321 in words is "one hundred thirty-one trillion, one hundred one billion, three hundred forty-three million, one hundred two thousand, three hundred twenty-one".