111110123201 has 24 divisors (see below), whose sum is σ = 139736439360. Its totient is φ = 86480016480.

The previous prime is 111110123197. The next prime is 111110123203. The reversal of 111110123201 is 102321011111.

It is not a de Polignac number, because 111110123201 - 2² = 111110123197 is a prime.

It is not an unprimeable number, because it can be changed into a prime (111110123203) 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 23 ways as a sum of consecutive naturals, for example, 668030 + ... + 817608.

It is an arithmetic number, because the mean of its divisors is an integer number (5822351640).

Almost surely, 2^111110123201 is an apocalyptic number.

111110123201 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

111110123201 is a deficient number, since it is larger than the sum of its proper divisors (28626316159).

111110123201 is a wasteful number, since it uses less digits than its factorization.

111110123201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150485 (or 150474 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 14.

Adding to 111110123201 its reverse (102321011111), we get a palindrome (213431134312).

The spelling of 111110123201 in words is "one hundred eleven billion, one hundred ten million, one hundred twenty-three thousand, two hundred one".