11003203310311 has 12 divisors (see below), whose sum is σ = 11306006400216. Its totient is φ = 10702717764480.

The previous prime is 11003203310249. The next prime is 11003203310317. The reversal of 11003203310311 is 11301330230011.

It is not a de Polignac number, because 11003203310311 - 2³³ = 10994613375719 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11003203310317) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 294625 + ... + 4700341.

It is an arithmetic number, because the mean of its divisors is an integer number (942167200018).

Almost surely, 2^{11003203310311} is an apocalyptic number.

11003203310311 is a deficient number, since it is larger than the sum of its proper divisors (302803089905).

11003203310311 is an frugal number, since it uses more digits than its factorization.

11003203310311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4406242 (or 4406001 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 19.

Adding to 11003203310311 its reverse (11301330230011), we get a palindrome (22304533540322).

The spelling of 11003203310311 in words is "eleven trillion, three billion, two hundred three million, three hundred ten thousand, three hundred eleven".