2304042321 has 8 divisors (see below), whose sum is σ = 3510921664. Its totient is φ = 1316595600.

The previous prime is 2304042289. The next prime is 2304042337. The reversal of 2304042321 is 1232404032.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2304042321 - 2⁵ = 2304042289 is a prime.

It is a super-2 number, since 2×2304042321² = 10617222033918134082, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 109716301 = 2304042321 / (2 + 3 + 0 + 4 + 0 + 4 + 2 + 3 + 2 + 1).

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2304041321) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54858130 + ... + 54858171.

It is an arithmetic number, because the mean of its divisors is an integer number (438865208).

Almost surely, 2^2304042321 is an apocalyptic number.

2304042321 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2304042321 is a deficient number, since it is larger than the sum of its proper divisors (1206879343).

2304042321 is a wasteful number, since it uses less digits than its factorization.

2304042321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109716311.

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 2304042321 is about 48000.4408417256. The cubic root of 2304042321 is about 1320.7789863638.

Adding to 2304042321 its reverse (1232404032), we get a palindrome (3536446353).

The spelling of 2304042321 in words is "two billion, three hundred four million, forty-two thousand, three hundred twenty-one".