131200303212521 has 2 divisors, whose sum is σ = 131200303212522. Its totient is φ = 131200303212520.

The previous prime is 131200303212509. The next prime is 131200303212541. The reversal of 131200303212521 is 125212303002131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 82454771972521 + 48745531240000 = 9080461^2 + 6981800^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-131200303212521 is a prime.

It is not a weakly prime, because it can be changed into another prime (131200303212541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65600151606260 + 65600151606261.

It is an arithmetic number, because the mean of its divisors is an integer number (65600151606261).

Almost surely, 2^{131200303212521} is an apocalyptic number.

It is an amenable number.

131200303212521 is a deficient number, since it is larger than the sum of its proper divisors (1).

131200303212521 is an equidigital number, since it uses as much as digits as its factorization.

131200303212521 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2160, while the sum is 26.

Adding to 131200303212521 its reverse (125212303002131), we get a palindrome (256412606214652).

The spelling of 131200303212521 in words is "one hundred thirty-one trillion, two hundred billion, three hundred three million, two hundred twelve thousand, five hundred twenty-one".