321331012003 has 2 divisors, whose sum is σ = 321331012004. Its totient is φ = 321331012002.

The previous prime is 321331011983. The next prime is 321331012031. The reversal of 321331012003 is 300210133123.

It is a weak prime.

It is an emirp because it is prime and its reverse (300210133123) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 321331012003 - 2¹³ = 321331003811 is a prime.

It is not a weakly prime, because it can be changed into another prime (321331012043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160665506001 + 160665506002.

It is an arithmetic number, because the mean of its divisors is an integer number (160665506002).

Almost surely, 2^321331012003 is an apocalyptic number.

321331012003 is a deficient number, since it is larger than the sum of its proper divisors (1).

321331012003 is an equidigital number, since it uses as much as digits as its factorization.

321331012003 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 321331012003 its reverse (300210133123), we get a palindrome (621541145126).

The spelling of 321331012003 in words is "three hundred twenty-one billion, three hundred thirty-one million, twelve thousand, three".