11112111223103 has 12 divisors (see below), whose sum is σ = 12932617536720. Its totient is φ = 9507688745280.

The previous prime is 11112111223097. The next prime is 11112111223127. The reversal of 11112111223103 is 30132211121111.

It is a de Polignac number, because none of the positive numbers 2^k-11112111223103 is a prime.

It is a super-2 number, since 2×11112111223103² (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 (11112111223153) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2701045883 + ... + 2701049996.

It is an arithmetic number, because the mean of its divisors is an integer number (1077718128060).

Almost surely, 2^{11112111223103} is an apocalyptic number.

11112111223103 is a deficient number, since it is larger than the sum of its proper divisors (1820506313617).

11112111223103 is a wasteful number, since it uses less digits than its factorization.

11112111223103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5402095918 (or 5402095907 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 20.

Adding to 11112111223103 its reverse (30132211121111), we get a palindrome (41244322344214).

The spelling of 11112111223103 in words is "eleven trillion, one hundred twelve billion, one hundred eleven million, two hundred twenty-three thousand, one hundred three".