20411011 has 2 divisors, whose sum is σ = 20411012. Its totient is φ = 20411010.

The previous prime is 20411003. The next prime is 20411029. The reversal of 20411011 is 11011402.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20411011 - 2³ = 20411003 is a prime.

It is not a weakly prime, because it can be changed into another prime (20411411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10205505 + 10205506.

It is an arithmetic number, because the mean of its divisors is an integer number (10205506).

Almost surely, 2^20411011 is an apocalyptic number.

20411011 is a deficient number, since it is larger than the sum of its proper divisors (1).

20411011 is an equidigital number, since it uses as much as digits as its factorization.

20411011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8, while the sum is 10.

The square root of 20411011 is about 4517.8546900050. The cubic root of 20411011 is about 273.2885935432.

Adding to 20411011 its reverse (11011402), we get a palindrome (31422413).

The spelling of 20411011 in words is "twenty million, four hundred eleven thousand, eleven".