131020441421101 has 4 divisors (see below), whose sum is σ = 131854966525852. Its totient is φ = 130185916316352.

The previous prime is 131020441421063. The next prime is 131020441421113. The reversal of 131020441421101 is 101124144020131.

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 95392316076201 + 35628125344900 = 9766899^2 + 5968930^2 .

It is a cyclic number.

It is not a de Polignac number, because 131020441421101 - 2¹³ = 131020441412909 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 (131020441427101) 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, 417262552140 + ... + 417262552453.

It is an arithmetic number, because the mean of its divisors is an integer number (32963741631463).

Almost surely, 2^{131020441421101} is an apocalyptic number.

It is an amenable number.

131020441421101 is a deficient number, since it is larger than the sum of its proper divisors (834525104751).

131020441421101 is an equidigital number, since it uses as much as digits as its factorization.

131020441421101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 834525104750.

The product of its (nonzero) digits is 768, while the sum is 25.

Adding to 131020441421101 its reverse (101124144020131), we get a palindrome (232144585441232).

The spelling of 131020441421101 in words is "one hundred thirty-one trillion, twenty billion, four hundred forty-one million, four hundred twenty-one thousand, one hundred one".