20411434201 has 2 divisors, whose sum is σ = 20411434202. Its totient is φ = 20411434200.

The previous prime is 20411434139. The next prime is 20411434207. The reversal of 20411434201 is 10243411402.

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., 14423769801 + 5987664400 = 120099^2 + 77380^2 .

It is a cyclic number.

It is not a de Polignac number, because 20411434201 - 2⁷ = 20411434073 is a prime.

It is a super-2 number, since 2×20411434201² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (20411434207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10205717100 + 10205717101.

It is an arithmetic number, because the mean of its divisors is an integer number (10205717101).

Almost surely, 2^20411434201 is an apocalyptic number.

It is an amenable number.

20411434201 is a deficient number, since it is larger than the sum of its proper divisors (1).

20411434201 is an equidigital number, since it uses as much as digits as its factorization.

20411434201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 20411434201 its reverse (10243411402), we get a palindrome (30654845603).

The spelling of 20411434201 in words is "twenty billion, four hundred eleven million, four hundred thirty-four thousand, two hundred one".