20422340030431 has 4 divisors (see below), whose sum is σ = 21126558652200. Its totient is φ = 19718121408664.

The previous prime is 20422340030399. The next prime is 20422340030447. The reversal of 20422340030431 is 13403004322402.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20422340030431 - 2⁵ = 20422340030399 is a prime.

It is a super-2 number, since 2×20422340030431² (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 20422340030431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20422340030461) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 352109310841 + ... + 352109310898.

It is an arithmetic number, because the mean of its divisors is an integer number (5281639663050).

Almost surely, 2^{20422340030431} is an apocalyptic number.

20422340030431 is a deficient number, since it is larger than the sum of its proper divisors (704218621769).

20422340030431 is an equidigital number, since it uses as much as digits as its factorization.

20422340030431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 704218621768.

The product of its (nonzero) digits is 13824, while the sum is 28.

Adding to 20422340030431 its reverse (13403004322402), we get a palindrome (33825344352833).

The spelling of 20422340030431 in words is "twenty trillion, four hundred twenty-two billion, three hundred forty million, thirty thousand, four hundred thirty-one".