13331221003 has 2 divisors, whose sum is σ = 13331221004. Its totient is φ = 13331221002.

The previous prime is 13331220977. The next prime is 13331221037. The reversal of 13331221003 is 30012213331.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13331221003 - 2³³ = 4741286411 is a prime.

It is not a weakly prime, because it can be changed into another prime (13331221063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6665610501 + 6665610502.

It is an arithmetic number, because the mean of its divisors is an integer number (6665610502).

Almost surely, 2^13331221003 is an apocalyptic number.

13331221003 is a deficient number, since it is larger than the sum of its proper divisors (1).

13331221003 is an equidigital number, since it uses as much as digits as its factorization.

13331221003 is an odious number, because the sum of its binary digits is odd.

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

Adding to 13331221003 its reverse (30012213331), we get a palindrome (43343434334).

The spelling of 13331221003 in words is "thirteen billion, three hundred thirty-one million, two hundred twenty-one thousand, three".