20422431111005 has 192 divisors, whose sum is σ = 33209148801024. Its totient is φ = 11767179916800.

The previous prime is 20422431111001. The next prime is 20422431111029. The reversal of 20422431111005 is 50011113422402.

It is a happy number.

It is not a de Polignac number, because 20422431111005 - 2² = 20422431111001 is a prime.

It is a super-2 number, since 2×20422431111005² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20422431111001) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 2213329202 + ... + 2213338428.

It is an arithmetic number, because the mean of its divisors is an integer number (172964316672).

Almost surely, 2^{20422431111005} is an apocalyptic number.

It is an amenable number.

20422431111005 is a deficient number, since it is larger than the sum of its proper divisors (12786717690019).

20422431111005 is a wasteful number, since it uses less digits than its factorization.

20422431111005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10048 (or 10037 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 26.

Adding to 20422431111005 its reverse (50011113422402), we get a palindrome (70433544533407).

The spelling of 20422431111005 in words is "twenty trillion, four hundred twenty-two billion, four hundred thirty-one million, one hundred eleven thousand, five".