2231322329 has 4 divisors (see below), whose sum is σ = 2231712384. Its totient is φ = 2230932276.

The previous prime is 2231322221. The next prime is 2231322337. The reversal of 2231322329 is 9232231322.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2231322329 - 2¹⁶ = 2231256793 is a prime.

It is a super-3 number, since 3×2231322329³ (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 (2231022329) 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, 186317 + ... + 197930.

It is an arithmetic number, because the mean of its divisors is an integer number (557928096).

Almost surely, 2^2231322329 is an apocalyptic number.

It is an amenable number.

2231322329 is a deficient number, since it is larger than the sum of its proper divisors (390055).

2231322329 is an equidigital number, since it uses as much as digits as its factorization.

2231322329 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 390054.

The product of its digits is 7776, while the sum is 29.

The square root of 2231322329 is about 47236.8746743474. The cubic root of 2231322329 is about 1306.7347401005.

The spelling of 2231322329 in words is "two billion, two hundred thirty-one million, three hundred twenty-two thousand, three hundred twenty-nine".