321232003 has 2 divisors, whose sum is σ = 321232004. Its totient is φ = 321232002.

The previous prime is 321232001. The next prime is 321232019. The reversal of 321232003 is 300232123.

It is an a-pointer prime, because the next prime (321232019) can be obtained adding 321232003 to its sum of digits (16).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 321232003 - 2¹ = 321232001 is a prime.

Together with 321232001, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (321232001) 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 as a sum of consecutive naturals, namely, 160616001 + 160616002.

It is an arithmetic number, because the mean of its divisors is an integer number (160616002).

Almost surely, 2^321232003 is an apocalyptic number.

321232003 is a deficient number, since it is larger than the sum of its proper divisors (1).

321232003 is an equidigital number, since it uses as much as digits as its factorization.

321232003 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 16.

The square root of 321232003 is about 17922.9462700751. The cubic root of 321232003 is about 684.8670443644.

Adding to 321232003 its reverse (300232123), we get a palindrome (621464126).

It can be divided in two parts, 321 and 232003, that added together give a square (232324 = 482²).

The spelling of 321232003 in words is "three hundred twenty-one million, two hundred thirty-two thousand, three".