21334131333 has 12 divisors (see below), whose sum is σ = 31249996128. Its totient is φ = 14022433320.

The previous prime is 21334131307. The next prime is 21334131389. The reversal of 21334131333 is 33313143312.

21334131333 is a `hidden beast` number, since 2 + 1 + 3 + 341 + 313 + 3 + 3 = 666.

It is not a de Polignac number, because 21334131333 - 2³⁴ = 4154262149 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 21334131297 and 21334131306.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21334131233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16692735 + ... + 16694012.

It is an arithmetic number, because the mean of its divisors is an integer number (2604166344).

Almost surely, 2^21334131333 is an apocalyptic number.

It is an amenable number.

21334131333 is a deficient number, since it is larger than the sum of its proper divisors (9915864795).

21334131333 is a wasteful number, since it uses less digits than its factorization.

21334131333 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33386824 (or 33386821 counting only the distinct ones).

The product of its digits is 5832, while the sum is 27.

Adding to 21334131333 its reverse (33313143312), we get a palindrome (54647274645).

The spelling of 21334131333 in words is "twenty-one billion, three hundred thirty-four million, one hundred thirty-one thousand, three hundred thirty-three".