1230032321 has 16 divisors (see below), whose sum is σ = 1440923904. Its totient is φ = 1028174784.

The previous prime is 1230032299. The next prime is 1230032369. The reversal of 1230032321 is 1232300321.

It is not a de Polignac number, because 1230032321 - 2⁶ = 1230032257 is a prime.

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 1230032321.

It is not an unprimeable number, because it can be changed into a prime (1230032371) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52031 + ... + 71883.

It is an arithmetic number, because the mean of its divisors is an integer number (90057744).

Almost surely, 2^1230032321 is an apocalyptic number.

It is an amenable number.

1230032321 is a deficient number, since it is larger than the sum of its proper divisors (210891583).

1230032321 is a wasteful number, since it uses less digits than its factorization.

1230032321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20080.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 1230032321 is about 35071.8166196164. The cubic root of 1230032321 is about 1071.4506544469.

Adding to 1230032321 its reverse (1232300321), we get a palindrome (2462332642).

The spelling of 1230032321 in words is "one billion, two hundred thirty million, thirty-two thousand, three hundred twenty-one".