11211211103 has 8 divisors (see below), whose sum is σ = 11873263488. Its totient is φ = 10563709464.

The previous prime is 11211211069. The next prime is 11211211111. The reversal of 11211211103 is 30111211211.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11211211103 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11211211183) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3636101 + ... + 3639182.

It is an arithmetic number, because the mean of its divisors is an integer number (1484157936).

Almost surely, 2^11211211103 is an apocalyptic number.

11211211103 is a deficient number, since it is larger than the sum of its proper divisors (662052385).

11211211103 is an equidigital number, since it uses as much as digits as its factorization.

11211211103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7275373.

The product of its (nonzero) digits is 12, while the sum is 14.

Adding to 11211211103 its reverse (30111211211), we get a palindrome (41322422314).

The spelling of 11211211103 in words is "eleven billion, two hundred eleven million, two hundred eleven thousand, one hundred three".