11321211003203 has 4 divisors (see below), whose sum is σ = 11321978401608. Its totient is φ = 11320443604800.

The previous prime is 11321211003187. The next prime is 11321211003239. The reversal of 11321211003203 is 30230011212311.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 11321211003203 - 2⁴ = 11321211003187 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11321211003283) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 383677073 + ... + 383706578.

It is an arithmetic number, because the mean of its divisors is an integer number (2830494600402).

Almost surely, 2^{11321211003203} is an apocalyptic number.

11321211003203 is a deficient number, since it is larger than the sum of its proper divisors (767398405).

11321211003203 is an equidigital number, since it uses as much as digits as its factorization.

11321211003203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 767398404.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 11321211003203 its reverse (30230011212311), we get a palindrome (41551222215514).

The spelling of 11321211003203 in words is "eleven trillion, three hundred twenty-one billion, two hundred eleven million, three thousand, two hundred three".