11111210001103 has 4 divisors (see below), whose sum is σ = 11152515614760. Its totient is φ = 11069904387448.

The previous prime is 11111210001097. The next prime is 11111210001187. The reversal of 11111210001103 is 30110001211111.

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 11111210001103 - 2⁴¹ = 8912186745551 is a prime.

It is a super-2 number, since 2×11111210001103² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11111210001193) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20652806425 + ... + 20652806962.

It is an arithmetic number, because the mean of its divisors is an integer number (2788128903690).

Almost surely, 2^{11111210001103} is an apocalyptic number.

11111210001103 is a deficient number, since it is larger than the sum of its proper divisors (41305613657).

11111210001103 is an equidigital number, since it uses as much as digits as its factorization.

11111210001103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41305613656.

The product of its (nonzero) digits is 6, while the sum is 13.

Adding to 11111210001103 its reverse (30110001211111), we get a palindrome (41221211212214).

The spelling of 11111210001103 in words is "eleven trillion, one hundred eleven billion, two hundred ten million, one thousand, one hundred three".