131020441421213 has 2 divisors, whose sum is σ = 131020441421214. Its totient is φ = 131020441421212.

The previous prime is 131020441421183. The next prime is 131020441421227. The reversal of 131020441421213 is 312124144020131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 121133202638809 + 9887238782404 = 11006053^2 + 3144398^2 .

It is a cyclic number.

It is not a de Polignac number, because 131020441421213 - 2¹⁶ = 131020441355677 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131020441421263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65510220710606 + 65510220710607.

It is an arithmetic number, because the mean of its divisors is an integer number (65510220710607).

Almost surely, 2^{131020441421213} is an apocalyptic number.

It is an amenable number.

131020441421213 is a deficient number, since it is larger than the sum of its proper divisors (1).

131020441421213 is an equidigital number, since it uses as much as digits as its factorization.

131020441421213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4608, while the sum is 29.

Adding to 131020441421213 its reverse (312124144020131), we get a palindrome (443144585441344).

The spelling of 131020441421213 in words is "one hundred thirty-one trillion, twenty billion, four hundred forty-one million, four hundred twenty-one thousand, two hundred thirteen".