21433413241 has 8 divisors (see below), whose sum is σ = 21458131200. Its totient is φ = 21408713040.

The previous prime is 21433413229. The next prime is 21433413251. The reversal of 21433413241 is 14231433412.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 21433413241 - 2⁹ = 21433412729 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21433413251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5030370 + ... + 5034628.

It is an arithmetic number, because the mean of its divisors is an integer number (2682266400).

Almost surely, 2^21433413241 is an apocalyptic number.

It is an amenable number.

21433413241 is a deficient number, since it is larger than the sum of its proper divisors (24717959).

21433413241 is a wasteful number, since it uses less digits than its factorization.

21433413241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8879.

The product of its digits is 6912, while the sum is 28.

Adding to 21433413241 its reverse (14231433412), we get a palindrome (35664846653).

The spelling of 21433413241 in words is "twenty-one billion, four hundred thirty-three million, four hundred thirteen thousand, two hundred forty-one".