21032301211 has 2 divisors, whose sum is σ = 21032301212. Its totient is φ = 21032301210.

The previous prime is 21032301187. The next prime is 21032301221. The reversal of 21032301211 is 11210323012.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 21032301211 - 2²⁷ = 20898083483 is a prime.

It is not a weakly prime, because it can be changed into another prime (21032301221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10516150605 + 10516150606.

It is an arithmetic number, because the mean of its divisors is an integer number (10516150606).

Almost surely, 2^21032301211 is an apocalyptic number.

21032301211 is a deficient number, since it is larger than the sum of its proper divisors (1).

21032301211 is an equidigital number, since it uses as much as digits as its factorization.

21032301211 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 21032301211 its reverse (11210323012), we get a palindrome (32242624223).

It can be divided in two parts, 210323012 and 11, that multiplied together give a palindrome (2313553132).

The spelling of 21032301211 in words is "twenty-one billion, thirty-two million, three hundred one thousand, two hundred eleven".