11211012003 has 8 divisors (see below), whose sum is σ = 15115971600. Its totient is φ = 7390030208.

The previous prime is 11211011953. The next prime is 11211012013. The reversal of 11211012003 is 30021011211.

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 11211012003 - 2⁹ = 11211011491 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11211012003.

It is not an unprimeable number, because it can be changed into a prime (11211012013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20994138 + ... + 20994671.

It is an arithmetic number, because the mean of its divisors is an integer number (1889496450).

Almost surely, 2^11211012003 is an apocalyptic number.

11211012003 is a deficient number, since it is larger than the sum of its proper divisors (3904959597).

11211012003 is an equidigital number, since it uses as much as digits as its factorization.

11211012003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41988901.

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

Adding to 11211012003 its reverse (30021011211), we get a palindrome (41232023214).

The spelling of 11211012003 in words is "eleven billion, two hundred eleven million, twelve thousand, three".