21483211 has 2 divisors, whose sum is σ = 21483212. Its totient is φ = 21483210.

The previous prime is 21483197. The next prime is 21483233. The reversal of 21483211 is 11238412.

It is a happy number.

It is an a-pointer prime, because the next prime (21483233) can be obtained adding 21483211 to its sum of digits (22).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 21483211 - 2¹³ = 21475019 is a prime.

It is a super-3 number, since 3×21483211³ (a number of 23 digits) contains 333 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (21483911) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10741605 + 10741606.

It is an arithmetic number, because the mean of its divisors is an integer number (10741606).

Almost surely, 2^21483211 is an apocalyptic number.

21483211 is a deficient number, since it is larger than the sum of its proper divisors (1).

21483211 is an equidigital number, since it uses as much as digits as its factorization.

21483211 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 384, while the sum is 22.

The square root of 21483211 is about 4634.9984897516. The cubic root of 21483211 is about 277.9924906965.

The spelling of 21483211 in words is "twenty-one million, four hundred eighty-three thousand, two hundred eleven".