321042532003 has 2 divisors, whose sum is σ = 321042532004. Its totient is φ = 321042532002.

The previous prime is 321042531989. The next prime is 321042532043. The reversal of 321042532003 is 300235240123.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 321042532003 - 2³³ = 312452597411 is a prime.

It is not a weakly prime, because it can be changed into another prime (321042532043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160521266001 + 160521266002.

It is an arithmetic number, because the mean of its divisors is an integer number (160521266002).

Almost surely, 2^321042532003 is an apocalyptic number.

321042532003 is a deficient number, since it is larger than the sum of its proper divisors (1).

321042532003 is an equidigital number, since it uses as much as digits as its factorization.

321042532003 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4320, while the sum is 25.

Adding to 321042532003 its reverse (300235240123), we get a palindrome (621277772126).

The spelling of 321042532003 in words is "three hundred twenty-one billion, forty-two million, five hundred thirty-two thousand, three".