131202412341421 has 2 divisors, whose sum is σ = 131202412341422. Its totient is φ = 131202412341420.

The previous prime is 131202412341367. The next prime is 131202412341433. The reversal of 131202412341421 is 124143214202131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 78822612804100 + 52379799537321 = 8878210^2 + 7237389^2 .

It is a cyclic number.

It is not a de Polignac number, because 131202412341421 - 2³¹ = 131200264857773 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131202412341461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65601206170710 + 65601206170711.

It is an arithmetic number, because the mean of its divisors is an integer number (65601206170711).

Almost surely, 2^{131202412341421} is an apocalyptic number.

It is an amenable number.

131202412341421 is a deficient number, since it is larger than the sum of its proper divisors (1).

131202412341421 is an equidigital number, since it uses as much as digits as its factorization.

131202412341421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9216, while the sum is 31.

Adding to 131202412341421 its reverse (124143214202131), we get a palindrome (255345626543552).

The spelling of 131202412341421 in words is "one hundred thirty-one trillion, two hundred two billion, four hundred twelve million, three hundred forty-one thousand, four hundred twenty-one".