2231535223 has 4 divisors (see below), whose sum is σ = 2231867520. Its totient is φ = 2231202928.

The previous prime is 2231535221. The next prime is 2231535227. The reversal of 2231535223 is 3225351322.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3225351322 = 2 ⋅1612675661.

It is a cyclic number.

It is not a de Polignac number, because 2231535223 - 2¹ = 2231535221 is a prime.

It is a super-3 number, since 3×2231535223³ (a number of 29 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2231535191 and 2231535200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2231535221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 155863 + ... + 169576.

It is an arithmetic number, because the mean of its divisors is an integer number (557966880).

Almost surely, 2^2231535223 is an apocalyptic number.

2231535223 is a deficient number, since it is larger than the sum of its proper divisors (332297).

2231535223 is an equidigital number, since it uses as much as digits as its factorization.

2231535223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 332296.

The product of its digits is 10800, while the sum is 28.

The square root of 2231535223 is about 47239.1280931391. The cubic root of 2231535223 is about 1306.7762979898.

Adding to 2231535223 its reverse (3225351322), we get a palindrome (5456886545).

The spelling of 2231535223 in words is "two billion, two hundred thirty-one million, five hundred thirty-five thousand, two hundred twenty-three".