20424433013 has 8 divisors (see below), whose sum is σ = 20578971840. Its totient is φ = 20270003040.

The previous prime is 20424432991. The next prime is 20424433039. The reversal of 20424433013 is 31033442402.

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

It is not a de Polignac number, because 20424433013 - 2¹⁴ = 20424416629 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20424433213) 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, 371408 + ... + 422838.

It is an arithmetic number, because the mean of its divisors is an integer number (2572371480).

Almost surely, 2^20424433013 is an apocalyptic number.

It is an amenable number.

20424433013 is a deficient number, since it is larger than the sum of its proper divisors (154538827).

20424433013 is a wasteful number, since it uses less digits than its factorization.

20424433013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54427.

The product of its (nonzero) digits is 6912, while the sum is 26.

Adding to 20424433013 its reverse (31033442402), we get a palindrome (51457875415).

The spelling of 20424433013 in words is "twenty billion, four hundred twenty-four million, four hundred thirty-three thousand, thirteen".