202020210100057 has 2 divisors, whose sum is σ = 202020210100058. Its totient is φ = 202020210100056.

The previous prime is 202020210099931. The next prime is 202020210100069. The reversal of 202020210100057 is 750001012020202.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 196474354658761 + 5545855441296 = 14016931^2 + 2354964^2 .

It is a cyclic number.

It is not a de Polignac number, because 202020210100057 - 2³⁵ = 201985850361689 is a prime.

It is not a weakly prime, because it can be changed into another prime (202020210100957) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101010105050028 + 101010105050029.

It is an arithmetic number, because the mean of its divisors is an integer number (101010105050029).

Almost surely, 2^{202020210100057} is an apocalyptic number.

It is an amenable number.

202020210100057 is a deficient number, since it is larger than the sum of its proper divisors (1).

202020210100057 is an equidigital number, since it uses as much as digits as its factorization.

202020210100057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 560, while the sum is 22.

Adding to 202020210100057 its reverse (750001012020202), we get a palindrome (952021222120259).

The spelling of 202020210100057 in words is "two hundred two trillion, twenty billion, two hundred ten million, one hundred thousand, fifty-seven".