22020147423 has 12 divisors (see below), whose sum is σ = 32190096120. Its totient is φ = 14503229136.

The previous prime is 22020147407. The next prime is 22020147431. The reversal of 22020147423 is 32474102022.

22020147423 is a `hidden beast` number, since 220 + 2 + 0 + 14 + 7 + 423 = 666.

It is not a de Polignac number, because 22020147423 - 2⁴ = 22020147407 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22020147433) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14738308 + ... + 14739801.

It is an arithmetic number, because the mean of its divisors is an integer number (2682508010).

Almost surely, 2^22020147423 is an apocalyptic number.

22020147423 is a deficient number, since it is larger than the sum of its proper divisors (10169948697).

22020147423 is a wasteful number, since it uses less digits than its factorization.

22020147423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29478198 (or 29478195 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 27.

Adding to 22020147423 its reverse (32474102022), we get a palindrome (54494249445).

The spelling of 22020147423 in words is "twenty-two billion, twenty million, one hundred forty-seven thousand, four hundred twenty-three".