11001231003 has 16 divisors (see below), whose sum is σ = 16769984256. Its totient is φ = 6284091360.

The previous prime is 11001230887. The next prime is 11001231011. The reversal of 11001231003 is 30013210011.

It is not a de Polignac number, because 11001231003 - 2¹⁴ = 11001214619 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11001231003.

It is not an unprimeable number, because it can be changed into a prime (11001233003) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38001 + ... + 153122.

It is an arithmetic number, because the mean of its divisors is an integer number (1048124016).

Almost surely, 2^11001231003 is an apocalyptic number.

11001231003 is a deficient number, since it is larger than the sum of its proper divisors (5768753253).

11001231003 is a wasteful number, since it uses less digits than its factorization.

11001231003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193874.

The product of its (nonzero) digits is 18, while the sum is 12.

Adding to 11001231003 its reverse (30013210011), we get a palindrome (41014441014).

The spelling of 11001231003 in words is "eleven billion, one million, two hundred thirty-one thousand, three".