11031212003 has 4 divisors (see below), whose sum is σ = 12607099440. Its totient is φ = 9455324568.

The previous prime is 11031211981. The next prime is 11031212011. The reversal of 11031212003 is 30021213011.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30021213011 = 47 ⋅638749213.

It is a cyclic number.

It is not a de Polignac number, because 11031212003 - 2⁸ = 11031211747 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11031212083) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 787943708 + ... + 787943721.

It is an arithmetic number, because the mean of its divisors is an integer number (3151774860).

Almost surely, 2^11031212003 is an apocalyptic number.

11031212003 is a deficient number, since it is larger than the sum of its proper divisors (1575887437).

11031212003 is an equidigital number, since it uses as much as digits as its factorization.

11031212003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1575887436.

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 11031212003 its reverse (30021213011), we get a palindrome (41052425014).

The spelling of 11031212003 in words is "eleven billion, thirty-one million, two hundred twelve thousand, three".