20088911 has 2 divisors, whose sum is σ = 20088912. Its totient is φ = 20088910.

The previous prime is 20088841. The next prime is 20088923. The reversal of 20088911 is 11988002.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20088911 - 2²² = 15894607 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20088941) 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, 10044455 + 10044456.

It is an arithmetic number, because the mean of its divisors is an integer number (10044456).

Almost surely, 2^20088911 is an apocalyptic number.

20088911 is a deficient number, since it is larger than the sum of its proper divisors (1).

20088911 is an equidigital number, since it uses as much as digits as its factorization.

20088911 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1152, while the sum is 29.

The square root of 20088911 is about 4482.0654836805. The cubic root of 20088911 is about 271.8434030484.

The spelling of 20088911 in words is "twenty million, eighty-eight thousand, nine hundred eleven".