20243363421 has 8 divisors (see below), whose sum is σ = 27119072224. Its totient is φ = 13431615120.

The previous prime is 20243363383. The next prime is 20243363429. The reversal of 20243363421 is 12436334202.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20243363421 - 2¹⁴ = 20243347037 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20243363429) 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 7 ways as a sum of consecutive naturals, for example, 15989386 + ... + 15990651.

It is an arithmetic number, because the mean of its divisors is an integer number (3389884028).

Almost surely, 2^20243363421 is an apocalyptic number.

It is an amenable number.

20243363421 is a deficient number, since it is larger than the sum of its proper divisors (6875708803).

20243363421 is a wasteful number, since it uses less digits than its factorization.

20243363421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31980251.

The product of its (nonzero) digits is 20736, while the sum is 30.

Adding to 20243363421 its reverse (12436334202), we get a palindrome (32679697623).

The spelling of 20243363421 in words is "twenty billion, two hundred forty-three million, three hundred sixty-three thousand, four hundred twenty-one".