2021338130117 has 2 divisors, whose sum is σ = 2021338130118. Its totient is φ = 2021338130116.

The previous prime is 2021338130093. The next prime is 2021338130129. The reversal of 2021338130117 is 7110318331202.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2020039680961 + 1298449156 = 1421281^2 + 36034^2 .

It is a cyclic number.

It is not a de Polignac number, because 2021338130117 - 2³⁸ = 1746460223173 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2021338130197) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1010669065058 + 1010669065059.

It is an arithmetic number, because the mean of its divisors is an integer number (1010669065059).

Almost surely, 2^{2021338130117} is an apocalyptic number.

It is an amenable number.

2021338130117 is a deficient number, since it is larger than the sum of its proper divisors (1).

2021338130117 is an equidigital number, since it uses as much as digits as its factorization.

2021338130117 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6048, while the sum is 32.

The spelling of 2021338130117 in words is "two trillion, twenty-one billion, three hundred thirty-eight million, one hundred thirty thousand, one hundred seventeen".