131311232103101 has 4 divisors (see below), whose sum is σ = 131311315091100. Its totient is φ = 131311149115104.

The previous prime is 131311232103011. The next prime is 131311232103127. The reversal of 131311232103101 is 101301232113131.

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 58752761551225 + 72558470551876 = 7665035^2 + 8518126^2 .

It is a cyclic number.

It is not a de Polignac number, because 131311232103101 - 2²² = 131311227908797 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 (131311232303101) 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, 39073496 + ... + 42300833.

It is an arithmetic number, because the mean of its divisors is an integer number (32827828772775).

Almost surely, 2^{131311232103101} is an apocalyptic number.

It is an amenable number.

131311232103101 is a deficient number, since it is larger than the sum of its proper divisors (82987999).

131311232103101 is an equidigital number, since it uses as much as digits as its factorization.

131311232103101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82987998.

The product of its (nonzero) digits is 324, while the sum is 23.

Adding to 131311232103101 its reverse (101301232113131), we get a palindrome (232612464216232).

The spelling of 131311232103101 in words is "one hundred thirty-one trillion, three hundred eleven billion, two hundred thirty-two million, one hundred three thousand, one hundred one".