2231345443 has 4 divisors (see below), whose sum is σ = 2243811240. Its totient is φ = 2218879648.

The previous prime is 2231345407. The next prime is 2231345447. The reversal of 2231345443 is 3445431322.

It is a happy number.

2231345443 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 2231345443 - 2²¹ = 2229248291 is a prime.

It is a super-3 number, since 3×2231345443³ (a number of 29 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2231345447) 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, 6232630 + ... + 6232987.

It is an arithmetic number, because the mean of its divisors is an integer number (560952810).

Almost surely, 2^2231345443 is an apocalyptic number.

2231345443 is a deficient number, since it is larger than the sum of its proper divisors (12465797).

2231345443 is a wasteful number, since it uses less digits than its factorization.

2231345443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12465796.

The product of its digits is 34560, while the sum is 31.

The square root of 2231345443 is about 47237.1193342693. The cubic root of 2231345443 is about 1306.7392521877.

Adding to 2231345443 its reverse (3445431322), we get a palindrome (5676776765).

The spelling of 2231345443 in words is "two billion, two hundred thirty-one million, three hundred forty-five thousand, four hundred forty-three".