20441232433 has 16 divisors (see below), whose sum is σ = 20988253440. Its totient is φ = 19899184896.

The previous prime is 20441232421. The next prime is 20441232473. The reversal of 20441232433 is 33423214402.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20441232433 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20441232473) 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, 8555203 + ... + 8557591.

It is an arithmetic number, because the mean of its divisors is an integer number (1311765840).

Almost surely, 2^20441232433 is an apocalyptic number.

It is an amenable number.

20441232433 is a deficient number, since it is larger than the sum of its proper divisors (547021007).

20441232433 is a wasteful number, since it uses less digits than its factorization.

20441232433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3336.

The product of its (nonzero) digits is 13824, while the sum is 28.

Adding to 20441232433 its reverse (33423214402), we get a palindrome (53864446835).

The spelling of 20441232433 in words is "twenty billion, four hundred forty-one million, two hundred thirty-two thousand, four hundred thirty-three".