2323123309 has 4 divisors (see below), whose sum is σ = 2501825116. Its totient is φ = 2144421504.

The previous prime is 2323123307. The next prime is 2323123391. The reversal of 2323123309 is 9033213232.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 156500100 + 2166623209 = 12510^2 + 46547^2 .

It is a cyclic number.

It is not a de Polignac number, because 2323123309 - 2¹ = 2323123307 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2323123307) 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, 89350884 + ... + 89350909.

It is an arithmetic number, because the mean of its divisors is an integer number (625456279).

Almost surely, 2^2323123309 is an apocalyptic number.

It is an amenable number.

2323123309 is a deficient number, since it is larger than the sum of its proper divisors (178701807).

2323123309 is a wasteful number, since it uses less digits than its factorization.

2323123309 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178701806.

The product of its (nonzero) digits is 5832, while the sum is 28.

The square root of 2323123309 is about 48198.7894972477. The cubic root of 2323123309 is about 1324.4149896870.

The spelling of 2323123309 in words is "two billion, three hundred twenty-three million, one hundred twenty-three thousand, three hundred nine".