20243042443 has 8 divisors (see below), whose sum is σ = 21871214288. Its totient is φ = 18625015584.

The previous prime is 20243042437. The next prime is 20243042459. The reversal of 20243042443 is 34424034202.

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 20243042443 - 2⁵ = 20243042411 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20243142443) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2532096 + ... + 2540077.

It is an arithmetic number, because the mean of its divisors is an integer number (2733901786).

Almost surely, 2^20243042443 is an apocalyptic number.

20243042443 is a deficient number, since it is larger than the sum of its proper divisors (1628171845).

20243042443 is a wasteful number, since it uses less digits than its factorization.

20243042443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5072493.

The product of its (nonzero) digits is 18432, while the sum is 28.

Adding to 20243042443 its reverse (34424034202), we get a palindrome (54667076645).

The spelling of 20243042443 in words is "twenty billion, two hundred forty-three million, forty-two thousand, four hundred forty-three".