200120020100057 has 2 divisors, whose sum is σ = 200120020100058. Its totient is φ = 200120020100056.

The previous prime is 200120020100053. The next prime is 200120020100159. The reversal of 200120020100057 is 750001020021002.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 200018197842841 + 101822257216 = 14142779^2 + 319096^2 .

It is a cyclic number.

It is not a de Polignac number, because 200120020100057 - 2² = 200120020100053 is a prime.

It is a super-5 number, since 5×200120020100057⁵ (a number of 73 digits) contains 55555 as substring.

It is not a weakly prime, because it can be changed into another prime (200120020100053) 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, 100060010050028 + 100060010050029.

It is an arithmetic number, because the mean of its divisors is an integer number (100060010050029).

Almost surely, 2^{200120020100057} is an apocalyptic number.

It is an amenable number.

200120020100057 is a deficient number, since it is larger than the sum of its proper divisors (1).

200120020100057 is an equidigital number, since it uses as much as digits as its factorization.

200120020100057 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 280, while the sum is 20.

Adding to 200120020100057 its reverse (750001020021002), we get a palindrome (950121040121059).

The spelling of 200120020100057 in words is "two hundred trillion, one hundred twenty billion, twenty million, one hundred thousand, fifty-seven".