11003203011111 has 4 divisors (see below), whose sum is σ = 14670937348152. Its totient is φ = 7335468674072.

The previous prime is 11003203011103. The next prime is 11003203011121. The reversal of 11003203011111 is 11111030230011.

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 11003203011111 - 2³ = 11003203011103 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11003203011121) 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, 1833867168516 + ... + 1833867168521.

It is an arithmetic number, because the mean of its divisors is an integer number (3667734337038).

Almost surely, 2^{11003203011111} is an apocalyptic number.

11003203011111 is a deficient number, since it is larger than the sum of its proper divisors (3667734337041).

11003203011111 is an equidigital number, since it uses as much as digits as its factorization.

11003203011111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3667734337040.

The product of its (nonzero) digits is 18, while the sum is 15.

Adding to 11003203011111 its reverse (11111030230011), we get a palindrome (22114233241122).

The spelling of 11003203011111 in words is "eleven trillion, three billion, two hundred three million, eleven thousand, one hundred eleven".