20320224410431 has 8 divisors (see below), whose sum is σ = 22167552533328. Its totient is φ = 18472902120000.

The previous prime is 20320224410419. The next prime is 20320224410449. The reversal of 20320224410431 is 13401442202302.

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 20320224410431 - 2⁵ = 20320224410399 is a prime.

It is a super-2 number, since 2×20320224410431² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20320224410431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20320224414431) 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, 9238051 + ... + 11224171.

It is an arithmetic number, because the mean of its divisors is an integer number (2770944066666).

Almost surely, 2^{20320224410431} is an apocalyptic number.

20320224410431 is a deficient number, since it is larger than the sum of its proper divisors (1847328122897).

20320224410431 is a wasteful number, since it uses less digits than its factorization.

20320224410431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2916233.

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 20320224410431 its reverse (13401442202302), we get a palindrome (33721666612733).

The spelling of 20320224410431 in words is "twenty trillion, three hundred twenty billion, two hundred twenty-four million, four hundred ten thousand, four hundred thirty-one".