20424002420243 has 8 divisors (see below), whose sum is σ = 20824650788256. Its totient is φ = 20023920342400.

The previous prime is 20424002420231. The next prime is 20424002420287. The reversal of 20424002420243 is 34202420042402.

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 20424002420243 - 2¹⁴ = 20424002403859 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20424002425243) 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, 141499703 + ... + 141643968.

It is an arithmetic number, because the mean of its divisors is an integer number (2603081348532).

Almost surely, 2^{20424002420243} is an apocalyptic number.

20424002420243 is a deficient number, since it is larger than the sum of its proper divisors (400648368013).

20424002420243 is a wasteful number, since it uses less digits than its factorization.

20424002420243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 283145085.

The product of its (nonzero) digits is 24576, while the sum is 29.

Adding to 20424002420243 its reverse (34202420042402), we get a palindrome (54626422462645).

The spelling of 20424002420243 in words is "twenty trillion, four hundred twenty-four billion, two million, four hundred twenty thousand, two hundred forty-three".