11331321203 has 2 divisors, whose sum is σ = 11331321204. Its totient is φ = 11331321202.

The previous prime is 11331321193. The next prime is 11331321301. The reversal of 11331321203 is 30212313311.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11331321203 - 2¹⁴ = 11331304819 is a prime.

It is not a weakly prime, because it can be changed into another prime (11331321803) 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, 5665660601 + 5665660602.

It is an arithmetic number, because the mean of its divisors is an integer number (5665660602).

Almost surely, 2^11331321203 is an apocalyptic number.

11331321203 is a deficient number, since it is larger than the sum of its proper divisors (1).

11331321203 is an equidigital number, since it uses as much as digits as its factorization.

11331321203 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 20.

Adding to 11331321203 its reverse (30212313311), we get a palindrome (41543634514).

The spelling of 11331321203 in words is "eleven billion, three hundred thirty-one million, three hundred twenty-one thousand, two hundred three".