20411142211 has 2 divisors, whose sum is σ = 20411142212. Its totient is φ = 20411142210.

The previous prime is 20411142209. The next prime is 20411142263. The reversal of 20411142211 is 11224111402.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20411142211 - 2¹ = 20411142209 is a prime.

It is a super-2 number, since 2×20411142211² (a number of 21 digits) contains 22 as substring.

Together with 20411142209, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (20411142811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10205571105 + 10205571106.

It is an arithmetic number, because the mean of its divisors is an integer number (10205571106).

Almost surely, 2^20411142211 is an apocalyptic number.

20411142211 is a deficient number, since it is larger than the sum of its proper divisors (1).

20411142211 is an equidigital number, since it uses as much as digits as its factorization.

20411142211 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 20411142211 its reverse (11224111402), we get a palindrome (31635253613).

The spelling of 20411142211 in words is "twenty billion, four hundred eleven million, one hundred forty-two thousand, two hundred eleven".