111122231103 has 32 divisors (see below), whose sum is σ = 177475596480. Its totient is φ = 68310950400.

The previous prime is 111122231089. The next prime is 111122231111. The reversal of 111122231103 is 301132221111.

It is not a de Polignac number, because 111122231103 - 2⁵ = 111122231071 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111122231113) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 168403 + ... + 500603.

It is an arithmetic number, because the mean of its divisors is an integer number (5546112390).

Almost surely, 2^111122231103 is an apocalyptic number.

111122231103 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

111122231103 is a deficient number, since it is larger than the sum of its proper divisors (66353365377).

111122231103 is a wasteful number, since it uses less digits than its factorization.

111122231103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 333176 (or 333170 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

Adding to 111122231103 its reverse (301132221111), we get a palindrome (412254452214).

It can be divided in two parts, 111122 and 231103, that added together give a square (342225 = 585²).

The spelling of 111122231103 in words is "one hundred eleven billion, one hundred twenty-two million, two hundred thirty-one thousand, one hundred three".