20243021335 has 4 divisors (see below), whose sum is σ = 24291625608. Its totient is φ = 16194417064.

The previous prime is 20243021263. The next prime is 20243021423. The reversal of 20243021335 is 53312034202.

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 20243021335 - 2⁷ = 20243021207 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2024302129 + ... + 2024302138.

It is an arithmetic number, because the mean of its divisors is an integer number (6072906402).

Almost surely, 2^20243021335 is an apocalyptic number.

20243021335 is a deficient number, since it is larger than the sum of its proper divisors (4048604273).

20243021335 is an equidigital number, since it uses as much as digits as its factorization.

20243021335 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4048604272.

The product of its (nonzero) digits is 4320, while the sum is 25.

Adding to 20243021335 its reverse (53312034202), we get a palindrome (73555055537).

The spelling of 20243021335 in words is "twenty billion, two hundred forty-three million, twenty-one thousand, three hundred thirty-five".