42202012231 has 4 divisors (see below), whose sum is σ = 44036882352. Its totient is φ = 40367142112.

The previous prime is 42202012207. The next prime is 42202012247. The reversal of 42202012231 is 13221020224.

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 42202012231 - 2⁵ = 42202012199 is a prime.

It is a super-2 number, since 2×42202012231² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42202012199 and 42202012208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42202012201) 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, 917435026 + ... + 917435071.

It is an arithmetic number, because the mean of its divisors is an integer number (11009220588).

Almost surely, 2^42202012231 is an apocalyptic number.

42202012231 is a deficient number, since it is larger than the sum of its proper divisors (1834870121).

42202012231 is a wasteful number, since it uses less digits than its factorization.

42202012231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1834870120.

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 42202012231 its reverse (13221020224), we get a palindrome (55423032455).

The spelling of 42202012231 in words is "forty-two billion, two hundred two million, twelve thousand, two hundred thirty-one".