21089832311 has 2 divisors, whose sum is σ = 21089832312. Its totient is φ = 21089832310.

The previous prime is 21089832233. The next prime is 21089832317. The reversal of 21089832311 is 11323898012.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 21089832311 - 2¹⁴ = 21089815927 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21089832317) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10544916155 + 10544916156.

It is an arithmetic number, because the mean of its divisors is an integer number (10544916156).

Almost surely, 2^21089832311 is an apocalyptic number.

21089832311 is a deficient number, since it is larger than the sum of its proper divisors (1).

21089832311 is an equidigital number, since it uses as much as digits as its factorization.

21089832311 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20736, while the sum is 38.

The spelling of 21089832311 in words is "twenty-one billion, eighty-nine million, eight hundred thirty-two thousand, three hundred eleven".