20001202057 has 2 divisors, whose sum is σ = 20001202058. Its totient is φ = 20001202056.

The previous prime is 20001202051. The next prime is 20001202127. The reversal of 20001202057 is 75020210002.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17386004736 + 2615197321 = 131856^2 + 51139^2 .

It is a cyclic number.

It is not a de Polignac number, because 20001202057 - 2⁷ = 20001201929 is a prime.

It is not a weakly prime, because it can be changed into another prime (20001202051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10000601028 + 10000601029.

It is an arithmetic number, because the mean of its divisors is an integer number (10000601029).

Almost surely, 2^20001202057 is an apocalyptic number.

It is an amenable number.

20001202057 is a deficient number, since it is larger than the sum of its proper divisors (1).

20001202057 is an equidigital number, since it uses as much as digits as its factorization.

20001202057 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 19.

Adding to 20001202057 its reverse (75020210002), we get a palindrome (95021412059).

The spelling of 20001202057 in words is "twenty billion, one million, two hundred two thousand, fifty-seven".