201000020057 has 2 divisors, whose sum is σ = 201000020058. Its totient is φ = 201000020056.

The previous prime is 201000020009. The next prime is 201000020093. The reversal of 201000020057 is 750020000102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 194272903696 + 6727116361 = 440764^2 + 82019^2 .

It is a cyclic number.

It is not a de Polignac number, because 201000020057 - 2⁶ = 201000019993 is a prime.

It is not a weakly prime, because it can be changed into another prime (201000020857) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100500010028 + 100500010029.

It is an arithmetic number, because the mean of its divisors is an integer number (100500010029).

Almost surely, 2^201000020057 is an apocalyptic number.

It is an amenable number.

201000020057 is a deficient number, since it is larger than the sum of its proper divisors (1).

201000020057 is an equidigital number, since it uses as much as digits as its factorization.

201000020057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 140, while the sum is 17.

Adding to 201000020057 its reverse (750020000102), we get a palindrome (951020020159).

The spelling of 201000020057 in words is "two hundred one billion, twenty thousand, fifty-seven".