20243121883 has 4 divisors (see below), whose sum is σ = 20243419720. Its totient is φ = 20242824048.

The previous prime is 20243121851. The next prime is 20243121889. The reversal of 20243121883 is 38812134202.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 20243121883 - 2⁵ = 20243121851 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20243121889) 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, 8503 + ... + 201391.

It is an arithmetic number, because the mean of its divisors is an integer number (5060854930).

Almost surely, 2^20243121883 is an apocalyptic number.

20243121883 is a deficient number, since it is larger than the sum of its proper divisors (297837).

20243121883 is a wasteful number, since it uses less digits than its factorization.

20243121883 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 297836.

The product of its (nonzero) digits is 18432, while the sum is 34.

The spelling of 20243121883 in words is "twenty billion, two hundred forty-three million, one hundred twenty-one thousand, eight hundred eighty-three".