130021100033021 has 2 divisors, whose sum is σ = 130021100033022. Its totient is φ = 130021100033020.

The previous prime is 130021100032949. The next prime is 130021100033023. The reversal of 130021100033021 is 120330001120031.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 128172965822500 + 1848134210521 = 11321350^2 + 1359461^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-130021100033021 is a prime.

Together with 130021100033023, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (130021100033023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65010550016510 + 65010550016511.

It is an arithmetic number, because the mean of its divisors is an integer number (65010550016511).

Almost surely, 2^{130021100033021} is an apocalyptic number.

It is an amenable number.

130021100033021 is a deficient number, since it is larger than the sum of its proper divisors (1).

130021100033021 is an equidigital number, since it uses as much as digits as its factorization.

130021100033021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 130021100033021 its reverse (120330001120031), we get a palindrome (250351101153052).

The spelling of 130021100033021 in words is "one hundred thirty trillion, twenty-one billion, one hundred million, thirty-three thousand, twenty-one".