21433003324 has 24 divisors (see below), whose sum is σ = 39295574528. Its totient is φ = 10216015920.

The previous prime is 21433003321. The next prime is 21433003331. The reversal of 21433003324 is 42330033412.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21433003321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1281594 + ... + 1298209.

Almost surely, 2^21433003324 is an apocalyptic number.

It is an amenable number.

21433003324 is a deficient number, since it is larger than the sum of its proper divisors (17862571204).

21433003324 is a wasteful number, since it uses less digits than its factorization.

21433003324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2579905 (or 2579903 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 25.

Adding to 21433003324 its reverse (42330033412), we get a palindrome (63763036736).

The spelling of 21433003324 in words is "twenty-one billion, four hundred thirty-three million, three thousand, three hundred twenty-four".