2231709943 has 4 divisors (see below), whose sum is σ = 2254717360. Its totient is φ = 2208702528.

The previous prime is 2231709929. The next prime is 2231709959. The reversal of 2231709943 is 3499071322.

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 2231709943 - 2²⁹ = 1694839031 is a prime.

It is a super-3 number, since 3×2231709943³ (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 = 2231709896 and 2231709905.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2231709973) 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, 11503563 + ... + 11503756.

It is an arithmetic number, because the mean of its divisors is an integer number (563679340).

Almost surely, 2^2231709943 is an apocalyptic number.

2231709943 is a deficient number, since it is larger than the sum of its proper divisors (23007417).

2231709943 is an equidigital number, since it uses as much as digits as its factorization.

2231709943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23007416.

The product of its (nonzero) digits is 81648, while the sum is 40.

The square root of 2231709943 is about 47240.9773713457. The cubic root of 2231709943 is about 1306.8104021637.

The spelling of 2231709943 in words is "two billion, two hundred thirty-one million, seven hundred nine thousand, nine hundred forty-three".