111103113011 has 4 divisors (see below), whose sum is σ = 121203396024. Its totient is φ = 101002830000.

The previous prime is 111103112999. The next prime is 111103113019. The reversal of 111103113011 is 110311301111.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111103113011 is a prime.

It is a super-2 number, since 2×111103113011² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111103113019) 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, 5050141490 + ... + 5050141511.

It is an arithmetic number, because the mean of its divisors is an integer number (30300849006).

Almost surely, 2^111103113011 is an apocalyptic number.

111103113011 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

111103113011 is a deficient number, since it is larger than the sum of its proper divisors (10100283013).

111103113011 is a wasteful number, since it uses less digits than its factorization.

111103113011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10100283012.

The product of its (nonzero) digits is 9, while the sum is 14.

Adding to 111103113011 its reverse (110311301111), we get a palindrome (221414414122).

It can be divided in two parts, 11 and 1103113011, that multiplied together give a palindrome (12134243121).

The spelling of 111103113011 in words is "one hundred eleven billion, one hundred three million, one hundred thirteen thousand, eleven".