2021332102397 has 2 divisors, whose sum is σ = 2021332102398. Its totient is φ = 2021332102396.

The previous prime is 2021332102381. The next prime is 2021332102399. The reversal of 2021332102397 is 7932012331202.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1023848517316 + 997483585081 = 1011854^2 + 998741^2 .

It is a cyclic number.

It is not a de Polignac number, because 2021332102397 - 2⁴ = 2021332102381 is a prime.

Together with 2021332102399, 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 (2021332102399) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1010666051198 + 1010666051199.

It is an arithmetic number, because the mean of its divisors is an integer number (1010666051199).

Almost surely, 2^{2021332102397} is an apocalyptic number.

It is an amenable number.

2021332102397 is a deficient number, since it is larger than the sum of its proper divisors (1).

2021332102397 is an equidigital number, since it uses as much as digits as its factorization.

2021332102397 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27216, while the sum is 35.

Adding to 2021332102397 its reverse (7932012331202), we get a palindrome (9953344433599).

The spelling of 2021332102397 in words is "two trillion, twenty-one billion, three hundred thirty-two million, one hundred two thousand, three hundred ninety-seven".