2021342345417 has 2 divisors, whose sum is σ = 2021342345418. Its totient is φ = 2021342345416.

The previous prime is 2021342345387. The next prime is 2021342345431. The reversal of 2021342345417 is 7145432431202.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1542417447481 + 478924897936 = 1241941^2 + 692044^2 .

It is a cyclic number.

It is not a de Polignac number, because 2021342345417 - 2²² = 2021338151113 is a prime.

It is not a weakly prime, because it can be changed into another prime (2021342345917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1010671172708 + 1010671172709.

It is an arithmetic number, because the mean of its divisors is an integer number (1010671172709).

Almost surely, 2^{2021342345417} is an apocalyptic number.

It is an amenable number.

2021342345417 is a deficient number, since it is larger than the sum of its proper divisors (1).

2021342345417 is an equidigital number, since it uses as much as digits as its factorization.

2021342345417 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 161280, while the sum is 38.

Adding to 2021342345417 its reverse (7145432431202), we get a palindrome (9166774776619).

The spelling of 2021342345417 in words is "two trillion, twenty-one billion, three hundred forty-two million, three hundred forty-five thousand, four hundred seventeen".