21344130333 has 12 divisors (see below), whose sum is σ = 30839004768. Its totient is φ = 14225453640.

The previous prime is 21344130299. The next prime is 21344130349. The reversal of 21344130333 is 33303144312.

21344130333 is a `hidden beast` number, since 213 + 4 + 413 + 0 + 3 + 33 = 666.

It is not a de Polignac number, because 21344130333 - 2³⁴ = 4164261149 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 21344130297 and 21344130306.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21344130133) 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, 296283 + ... + 361208.

It is an arithmetic number, because the mean of its divisors is an integer number (2569917064).

Almost surely, 2^21344130333 is an apocalyptic number.

It is an amenable number.

21344130333 is a deficient number, since it is larger than the sum of its proper divisors (9494874435).

21344130333 is a wasteful number, since it uses less digits than its factorization.

21344130333 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 661104 (or 661101 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 27.

Adding to 21344130333 its reverse (33303144312), we get a palindrome (54647274645).

The spelling of 21344130333 in words is "twenty-one billion, three hundred forty-four million, one hundred thirty thousand, three hundred thirty-three".