422311431 has 4 divisors (see below), whose sum is σ = 563081912. Its totient is φ = 281540952.

The previous prime is 422311429. The next prime is 422311531. The reversal of 422311431 is 134113224.

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

It is not a de Polignac number, because 422311431 - 2¹ = 422311429 is a prime.

It is a super-2 number, since 2×422311431² = 356693889506535522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 422311398 and 422311407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (422311031) 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, 70385236 + ... + 70385241.

It is an arithmetic number, because the mean of its divisors is an integer number (140770478).

Almost surely, 2^422311431 is an apocalyptic number.

422311431 is a deficient number, since it is larger than the sum of its proper divisors (140770481).

422311431 is a wasteful number, since it uses less digits than its factorization.

422311431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140770480.

The product of its digits is 576, while the sum is 21.

The square root of 422311431 is about 20550.2172981212. The cubic root of 422311431 is about 750.2585366459.

Adding to 422311431 its reverse (134113224), we get a palindrome (556424655).

The spelling of 422311431 in words is "four hundred twenty-two million, three hundred eleven thousand, four hundred thirty-one".