20000424432013 has 4 divisors (see below), whose sum is σ = 20100929077600. Its totient is φ = 19899919786428.

The previous prime is 20000424431969. The next prime is 20000424432067. The reversal of 20000424432013 is 31023442400002.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20000424432013 - 2²¹ = 20000422334861 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 (20000424432073) 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 3 ways as a sum of consecutive naturals, for example, 50252322495 + ... + 50252322892.

It is an arithmetic number, because the mean of its divisors is an integer number (5025232269400).

Almost surely, 2^{20000424432013} is an apocalyptic number.

It is an amenable number.

20000424432013 is a deficient number, since it is larger than the sum of its proper divisors (100504645587).

20000424432013 is a wasteful number, since it uses less digits than its factorization.

20000424432013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100504645586.

The product of its (nonzero) digits is 4608, while the sum is 25.

Adding to 20000424432013 its reverse (31023442400002), we get a palindrome (51023866832015).

The spelling of 20000424432013 in words is "twenty trillion, four hundred twenty-four million, four hundred thirty-two thousand, thirteen".