131120330200021 has 2 divisors, whose sum is σ = 131120330200022. Its totient is φ = 131120330200020.

The previous prime is 131120330200001. The next prime is 131120330200049. The reversal of 131120330200021 is 120002033021131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 113547139222500 + 17573190977521 = 10655850^2 + 4192039^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-131120330200021 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131120330200001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65560165100010 + 65560165100011.

It is an arithmetic number, because the mean of its divisors is an integer number (65560165100011).

Almost surely, 2^{131120330200021} is an apocalyptic number.

It is an amenable number.

131120330200021 is a deficient number, since it is larger than the sum of its proper divisors (1).

131120330200021 is an equidigital number, since it uses as much as digits as its factorization.

131120330200021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 131120330200021 its reverse (120002033021131), we get a palindrome (251122363221152).

The spelling of 131120330200021 in words is "one hundred thirty-one trillion, one hundred twenty billion, three hundred thirty million, two hundred thousand, twenty-one".