111101010111103 has 4 divisors (see below), whose sum is σ = 112759234142680. Its totient is φ = 109442786079528.

The previous prime is 111101010111083. The next prime is 111101010111131. The reversal of 111101010111103 is 301111010101111.

It is a happy number.

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 111101010111103 - 2¹³ = 111101010102911 is a prime.

It is a super-2 number, since 2×111101010111103² (a number of 29 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 (111101010111173) 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, 829112015688 + ... + 829112015821.

It is an arithmetic number, because the mean of its divisors is an integer number (28189808535670).

Almost surely, 2^{111101010111103} is an apocalyptic number.

111101010111103 is a deficient number, since it is larger than the sum of its proper divisors (1658224031577).

111101010111103 is an equidigital number, since it uses as much as digits as its factorization.

111101010111103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1658224031576.

The product of its (nonzero) digits is 3, while the sum is 13.

Adding to 111101010111103 its reverse (301111010101111), we get a palindrome (412212020212214).

The spelling of 111101010111103 in words is "one hundred eleven trillion, one hundred one billion, ten million, one hundred eleven thousand, one hundred three".