11123212003 has 8 divisors (see below), whose sum is σ = 11314105200. Its totient is φ = 10932397728.

The previous prime is 11123211989. The next prime is 11123212019. The reversal of 11123212003 is 30021232111.

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 11123212003 - 2²⁵ = 11089657571 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11123212063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 311893 + ... + 345721.

It is an arithmetic number, because the mean of its divisors is an integer number (1414263150).

Almost surely, 2^11123212003 is an apocalyptic number.

11123212003 is a deficient number, since it is larger than the sum of its proper divisors (190893197).

11123212003 is an equidigital number, since it uses as much as digits as its factorization.

11123212003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39461.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 11123212003 its reverse (30021232111), we get a palindrome (41144444114).

The spelling of 11123212003 in words is "eleven billion, one hundred twenty-three million, two hundred twelve thousand, three".