131442414221 has 2 divisors, whose sum is σ = 131442414222. Its totient is φ = 131442414220.

The previous prime is 131442414199. The next prime is 131442414253. The reversal of 131442414221 is 122414244131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 109551732196 + 21890682025 = 330986^2 + 147955^2 .

It is a cyclic number.

It is not a de Polignac number, because 131442414221 - 2¹⁸ = 131442152077 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131442414821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65721207110 + 65721207111.

It is an arithmetic number, because the mean of its divisors is an integer number (65721207111).

Almost surely, 2^131442414221 is an apocalyptic number.

It is an amenable number.

131442414221 is a deficient number, since it is larger than the sum of its proper divisors (1).

131442414221 is an equidigital number, since it uses as much as digits as its factorization.

131442414221 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6144, while the sum is 29.

Adding to 131442414221 its reverse (122414244131), we get a palindrome (253856658352).

The spelling of 131442414221 in words is "one hundred thirty-one billion, four hundred forty-two million, four hundred fourteen thousand, two hundred twenty-one".