131141111200021 has 6 divisors (see below), whose sum is σ = 142004871891330. Its totient is φ = 121053333415248.

The previous prime is 131141111199983. The next prime is 131141111200103. The reversal of 131141111200021 is 120002111141131.

It can be written as a sum of positive squares in 3 ways, for example, as 9078078610225 + 122063032589796 = 3012985^2 + 11048214^2 .

It is not a de Polignac number, because 131141111200021 - 2³¹ = 131138963716373 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 (131141111200621) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 387991453086 + ... + 387991453423.

It is an arithmetic number, because the mean of its divisors is an integer number (23667478648555).

Almost surely, 2^{131141111200021} is an apocalyptic number.

It is an amenable number.

131141111200021 is a deficient number, since it is larger than the sum of its proper divisors (10863760691309).

131141111200021 is an equidigital number, since it uses as much as digits as its factorization.

131141111200021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 775982906535 (or 775982906522 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 19.

Adding to 131141111200021 its reverse (120002111141131), we get a palindrome (251143222341152).

The spelling of 131141111200021 in words is "one hundred thirty-one trillion, one hundred forty-one billion, one hundred eleven million, two hundred thousand, twenty-one".