11211212003 has 8 divisors (see below), whose sum is σ = 11872029888. Its totient is φ = 10550542464.

The previous prime is 11211211997. The next prime is 11211212009. The reversal of 11211212003 is 30021211211.

11211212003 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (11211211997) and next prime (11211212009).

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 11211212003 - 2¹⁰ = 11211210979 is a prime.

It is a super-2 number, since 2×11211212003² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11211212009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 143750 + ... + 207572.

It is an arithmetic number, because the mean of its divisors is an integer number (1484003736).

Almost surely, 2^11211212003 is an apocalyptic number.

11211212003 is a deficient number, since it is larger than the sum of its proper divisors (660817885).

11211212003 is a wasteful number, since it uses less digits than its factorization.

11211212003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74173.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 11211212003 its reverse (30021211211), we get a palindrome (41232423214).

The spelling of 11211212003 in words is "eleven billion, two hundred eleven million, two hundred twelve thousand, three".