1012304321 has 8 divisors (see below), whose sum is σ = 1224973440. Its totient is φ = 816648768.

The previous prime is 1012304317. The next prime is 1012304327. The reversal of 1012304321 is 1234032101.

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

It is a cyclic number.

It is not a de Polignac number, because 1012304321 - 2² = 1012304317 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1012304321.

It is not an unprimeable number, because it can be changed into a prime (1012304327) 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, 4253261 + ... + 4253498.

It is an arithmetic number, because the mean of its divisors is an integer number (153121680).

Almost surely, 2^1012304321 is an apocalyptic number.

It is an amenable number.

1012304321 is a deficient number, since it is larger than the sum of its proper divisors (212669119).

1012304321 is an equidigital number, since it uses as much as digits as its factorization.

1012304321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8506783.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 1012304321 is about 31816.7302059781. The cubic root of 1012304321 is about 1004.0847325751.

Adding to 1012304321 its reverse (1234032101), we get a palindrome (2246336422).

The spelling of 1012304321 in words is "one billion, twelve million, three hundred four thousand, three hundred twenty-one".