11011231003 has 8 divisors (see below), whose sum is σ = 11099123280. Its totient is φ = 10923632160.

The previous prime is 11011230991. The next prime is 11011231037. The reversal of 11011231003 is 30013211011.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11011231003 - 2⁹ = 11011230491 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11011231073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2301 + ... + 148417.

It is an arithmetic number, because the mean of its divisors is an integer number (1387390410).

Almost surely, 2^11011231003 is an apocalyptic number.

11011231003 is a deficient number, since it is larger than the sum of its proper divisors (87892277).

11011231003 is a wasteful number, since it uses less digits than its factorization.

11011231003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146717.

The product of its (nonzero) digits is 18, while the sum is 13.

Adding to 11011231003 its reverse (30013211011), we get a palindrome (41024442014).

The spelling of 11011231003 in words is "eleven billion, eleven million, two hundred thirty-one thousand, three".