240304052122021 has 2 divisors, whose sum is σ = 240304052122022. Its totient is φ = 240304052122020.

The previous prime is 240304052122019. The next prime is 240304052122031. The reversal of 240304052122021 is 120221250403042.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 152380236489121 + 87923815632900 = 12344239^2 + 9376770^2 .

It is a cyclic number.

It is not a de Polignac number, because 240304052122021 - 2¹ = 240304052122019 is a prime.

It is a super-3 number, since 3×240304052122021³ (a number of 44 digits) contains 333 as substring.

Together with 240304052122019, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (240304052122031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 120152026061010 + 120152026061011.

It is an arithmetic number, because the mean of its divisors is an integer number (120152026061011).

Almost surely, 2^{240304052122021} is an apocalyptic number.

It is an amenable number.

240304052122021 is a deficient number, since it is larger than the sum of its proper divisors (1).

240304052122021 is an equidigital number, since it uses as much as digits as its factorization.

240304052122021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7680, while the sum is 28.

The spelling of 240304052122021 in words is "two hundred forty trillion, three hundred four billion, fifty-two million, one hundred twenty-two thousand, twenty-one".