21433352327 has 16 divisors (see below), whose sum is σ = 23152434912. Its totient is φ = 19768320000.

The previous prime is 21433352273. The next prime is 21433352329. The reversal of 21433352327 is 72325333412.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 21433352327 - 2²⁴ = 21416575111 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21433352329) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 171077 + ... + 268577.

It is an arithmetic number, because the mean of its divisors is an integer number (1447027182).

Almost surely, 2^21433352327 is an apocalyptic number.

21433352327 is a deficient number, since it is larger than the sum of its proper divisors (1719082585).

21433352327 is a wasteful number, since it uses less digits than its factorization.

21433352327 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97778.

The product of its digits is 90720, while the sum is 35.

Adding to 21433352327 its reverse (72325333412), we get a palindrome (93758685739).

The spelling of 21433352327 in words is "twenty-one billion, four hundred thirty-three million, three hundred fifty-two thousand, three hundred twenty-seven".