131043412230121 has 2 divisors, whose sum is σ = 131043412230122. Its totient is φ = 131043412230120.

The previous prime is 131043412230097. The next prime is 131043412230149. The reversal of 131043412230121 is 121032214340131.

It is an a-pointer prime, because the next prime (131043412230149) can be obtained adding 131043412230121 to its sum of digits (28).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 80775156250000 + 50268255980121 = 8987500^2 + 7090011^2 .

It is a cyclic number.

It is not a de Polignac number, because 131043412230121 - 2¹⁷ = 131043412099049 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 131043412230121.

It is not a weakly prime, because it can be changed into another prime (131043412230421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65521706115060 + 65521706115061.

It is an arithmetic number, because the mean of its divisors is an integer number (65521706115061).

Almost surely, 2^{131043412230121} is an apocalyptic number.

It is an amenable number.

131043412230121 is a deficient number, since it is larger than the sum of its proper divisors (1).

131043412230121 is an equidigital number, since it uses as much as digits as its factorization.

131043412230121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3456, while the sum is 28.

Adding to 131043412230121 its reverse (121032214340131), we get a palindrome (252075626570252).

The spelling of 131043412230121 in words is "one hundred thirty-one trillion, forty-three billion, four hundred twelve million, two hundred thirty thousand, one hundred twenty-one".