131404313302261 has 2 divisors, whose sum is σ = 131404313302262. Its totient is φ = 131404313302260.

The previous prime is 131404313302181. The next prime is 131404313302279. The reversal of 131404313302261 is 162203313404131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 130615069403025 + 789243899236 = 11428695^2 + 888394^2 .

It is a cyclic number.

It is not a de Polignac number, because 131404313302261 - 2⁷ = 131404313302133 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131404313302861) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65702156651130 + 65702156651131.

It is an arithmetic number, because the mean of its divisors is an integer number (65702156651131).

Almost surely, 2^{131404313302261} is an apocalyptic number.

It is an amenable number.

131404313302261 is a deficient number, since it is larger than the sum of its proper divisors (1).

131404313302261 is an equidigital number, since it uses as much as digits as its factorization.

131404313302261 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 31104, while the sum is 34.

Adding to 131404313302261 its reverse (162203313404131), we get a palindrome (293607626706392).

The spelling of 131404313302261 in words is "one hundred thirty-one trillion, four hundred four billion, three hundred thirteen million, three hundred two thousand, two hundred sixty-one".