11103203332321 has 2 divisors, whose sum is σ = 11103203332322. Its totient is φ = 11103203332320.

The previous prime is 11103203332303. The next prime is 11103203332343. The reversal of 11103203332321 is 12323330230111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7864322835600 + 3238880496721 = 2804340^2 + 1799689^2 .

It is a cyclic number.

It is not a de Polignac number, because 11103203332321 - 2⁹ = 11103203331809 is a prime.

It is a super-2 number, since 2×11103203332321² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (11103203332381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5551601666160 + 5551601666161.

It is an arithmetic number, because the mean of its divisors is an integer number (5551601666161).

Almost surely, 2^{11103203332321} is an apocalyptic number.

It is an amenable number.

11103203332321 is a deficient number, since it is larger than the sum of its proper divisors (1).

11103203332321 is an equidigital number, since it uses as much as digits as its factorization.

11103203332321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1944, while the sum is 25.

Adding to 11103203332321 its reverse (12323330230111), we get a palindrome (23426533562432).

The spelling of 11103203332321 in words is "eleven trillion, one hundred three billion, two hundred three million, three hundred thirty-two thousand, three hundred twenty-one".