11003321331 has 48 divisors (see below), whose sum is σ = 16810361568. Its totient is φ = 6926169600.

The previous prime is 11003321323. The next prime is 11003321339. The reversal of 11003321331 is 13312330011.

It is a happy number.

11003321331 is a `hidden beast` number, since 1 + 1 + 0 + 0 + 332 + 1 + 331 = 666.

It is an interprime number because it is at equal distance from previous prime (11003321323) and next prime (11003321339).

It is not a de Polignac number, because 11003321331 - 2³ = 11003321323 is a prime.

It is a super-2 number, since 2×11003321331² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11003321339) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2687596 + ... + 2691686.

It is an arithmetic number, because the mean of its divisors is an integer number (350215866).

Almost surely, 2^11003321331 is an apocalyptic number.

11003321331 is a deficient number, since it is larger than the sum of its proper divisors (5807040237).

11003321331 is a wasteful number, since it uses less digits than its factorization.

11003321331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4372 (or 4369 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 18.

Adding to 11003321331 its reverse (13312330011), we get a palindrome (24315651342).

The spelling of 11003321331 in words is "eleven billion, three million, three hundred twenty-one thousand, three hundred thirty-one".