20424013113 has 16 divisors (see below), whose sum is σ = 31124321280. Its totient is φ = 11670108816.

The previous prime is 20424013111. The next prime is 20424013151. The reversal of 20424013113 is 31131042402.

It is not a de Polignac number, because 20424013113 - 2¹ = 20424013111 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 20424013113.

It is not an unprimeable number, because it can be changed into a prime (20424013111) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 551308 + ... + 587186.

It is an arithmetic number, because the mean of its divisors is an integer number (1945270080).

Almost surely, 2^20424013113 is an apocalyptic number.

It is an amenable number.

20424013113 is a deficient number, since it is larger than the sum of its proper divisors (10700308167).

20424013113 is a wasteful number, since it uses less digits than its factorization.

20424013113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62996.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 20424013113 its reverse (31131042402), we get a palindrome (51555055515).

The spelling of 20424013113 in words is "twenty billion, four hundred twenty-four million, thirteen thousand, one hundred thirteen".