131141342144221 has 2 divisors, whose sum is σ = 131141342144222. Its totient is φ = 131141342144220.

The previous prime is 131141342144143. The next prime is 131141342144243. The reversal of 131141342144221 is 122441243141131.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 97867768838596 + 33273573305625 = 9892814^2 + 5768325^2 .

It is a cyclic number.

It is not a de Polignac number, because 131141342144221 - 2²³ = 131141333755613 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131141342144621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65570671072110 + 65570671072111.

It is an arithmetic number, because the mean of its divisors is an integer number (65570671072111).

Almost surely, 2^{131141342144221} is an apocalyptic number.

It is an amenable number.

131141342144221 is a deficient number, since it is larger than the sum of its proper divisors (1).

131141342144221 is an equidigital number, since it uses as much as digits as its factorization.

131141342144221 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 18432, while the sum is 34.

Adding to 131141342144221 its reverse (122441243141131), we get a palindrome (253582585285352).

The spelling of 131141342144221 in words is "one hundred thirty-one trillion, one hundred forty-one billion, three hundred forty-two million, one hundred forty-four thousand, two hundred twenty-one".