20420011201 has 2 divisors, whose sum is σ = 20420011202. Its totient is φ = 20420011200.

The previous prime is 20420011177. The next prime is 20420011207. The reversal of 20420011201 is 10211002402.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18810396801 + 1609614400 = 137151^2 + 40120^2 .

It is a cyclic number.

It is not a de Polignac number, because 20420011201 - 2²³ = 20411622593 is a prime.

It is not a weakly prime, because it can be changed into another prime (20420011207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10210005600 + 10210005601.

It is an arithmetic number, because the mean of its divisors is an integer number (10210005601).

Almost surely, 2^20420011201 is an apocalyptic number.

It is an amenable number.

20420011201 is a deficient number, since it is larger than the sum of its proper divisors (1).

20420011201 is an equidigital number, since it uses as much as digits as its factorization.

20420011201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 20420011201 its reverse (10211002402), we get a palindrome (30631013603).

The spelling of 20420011201 in words is "twenty billion, four hundred twenty million, eleven thousand, two hundred one".