21141333 has 12 divisors (see below), whose sum is σ = 30584268. Its totient is φ = 14072640.

The previous prime is 21141317. The next prime is 21141361. The reversal of 21141333 is 33314112.

It can be written as a sum of positive squares in 2 ways, for example, as 13704804 + 7436529 = 3702^2 + 2727^2 .

It is not a de Polignac number, because 21141333 - 2⁴ = 21141317 is a prime.

It is a super-2 number, since 2×21141333² = 893911922033778, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21141383) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6343 + ... + 9083.

It is an arithmetic number, because the mean of its divisors is an integer number (2548689).

Almost surely, 2^21141333 is an apocalyptic number.

It is an amenable number.

21141333 is a deficient number, since it is larger than the sum of its proper divisors (9442935).

21141333 is a wasteful number, since it uses less digits than its factorization.

21141333 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3604 (or 3601 counting only the distinct ones).

The product of its digits is 216, while the sum is 18.

The square root of 21141333 is about 4597.9705305711. The cubic root of 21141333 is about 276.5099661013.

Adding to 21141333 its reverse (33314112), we get a palindrome (54455445).

The spelling of 21141333 in words is "twenty-one million, one hundred forty-one thousand, three hundred thirty-three".