2020200999457 has 2 divisors, whose sum is σ = 2020200999458. Its totient is φ = 2020200999456.

The previous prime is 2020200999379. The next prime is 2020200999547. The reversal of 2020200999457 is 7549990020202.

Together with next prime (2020200999547) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1614993638976 + 405207360481 = 1270824^2 + 636559^2 .

It is a cyclic number.

It is not a de Polignac number, because 2020200999457 - 2¹⁹ = 2020200475169 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2020200999457.

It is not a weakly prime, because it can be changed into another prime (2020200999857) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1010100499728 + 1010100499729.

It is an arithmetic number, because the mean of its divisors is an integer number (1010100499729).

Almost surely, 2^{2020200999457} is an apocalyptic number.

It is an amenable number.

2020200999457 is a deficient number, since it is larger than the sum of its proper divisors (1).

2020200999457 is an equidigital number, since it uses as much as digits as its factorization.

2020200999457 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 816480, while the sum is 49.

The spelling of 2020200999457 in words is "two trillion, twenty billion, two hundred million, nine hundred ninety-nine thousand, four hundred fifty-seven".