11212003 has 4 divisors (see below), whose sum is σ = 12231288. Its totient is φ = 10192720.

The previous prime is 11212001. The next prime is 11212013. The reversal of 11212003 is 30021211.

11212003 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 11212003 - 2¹ = 11212001 is a prime.

It is a super-2 number, since 2×11212003² = 251418022544018, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11212001) 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, 509626 + ... + 509647.

It is an arithmetic number, because the mean of its divisors is an integer number (3057822).

Almost surely, 2^11212003 is an apocalyptic number.

11212003 is a deficient number, since it is larger than the sum of its proper divisors (1019285).

11212003 is a wasteful number, since it uses less digits than its factorization.

11212003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1019284.

The product of its (nonzero) digits is 12, while the sum is 10.

The square root of 11212003 is about 3348.4329170524. The cubic root of 11212003 is about 223.8176862106.

Adding to 11212003 its reverse (30021211), we get a palindrome (41233214).

The spelling of 11212003 in words is "eleven million, two hundred twelve thousand, three".