20433411443 has 4 divisors (see below), whose sum is σ = 21635376840. Its totient is φ = 19231446048.

The previous prime is 20433411437. The next prime is 20433411451. The reversal of 20433411443 is 34411433402.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20433411443 - 2⁶ = 20433411379 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20433411403) 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 3 ways as a sum of consecutive naturals, for example, 600982673 + ... + 600982706.

It is an arithmetic number, because the mean of its divisors is an integer number (5408844210).

Almost surely, 2^20433411443 is an apocalyptic number.

20433411443 is a deficient number, since it is larger than the sum of its proper divisors (1201965397).

20433411443 is a wasteful number, since it uses less digits than its factorization.

20433411443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1201965396.

The product of its (nonzero) digits is 13824, while the sum is 29.

Adding to 20433411443 its reverse (34411433402), we get a palindrome (54844844845).

The spelling of 20433411443 in words is "twenty billion, four hundred thirty-three million, four hundred eleven thousand, four hundred forty-three".