111011201100123 has 4 divisors (see below), whose sum is σ = 148014934800168. Its totient is φ = 74007467400080.

The previous prime is 111011201100119. The next prime is 111011201100161. The reversal of 111011201100123 is 321001102110111.

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 111011201100123 - 2² = 111011201100119 is a prime.

It is not an unprimeable number, because it can be changed into a prime (111011201100623) 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, 18501866850018 + ... + 18501866850023.

It is an arithmetic number, because the mean of its divisors is an integer number (37003733700042).

Almost surely, 2^{111011201100123} is an apocalyptic number.

111011201100123 is a deficient number, since it is larger than the sum of its proper divisors (37003733700045).

111011201100123 is an equidigital number, since it uses as much as digits as its factorization.

111011201100123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37003733700044.

The product of its (nonzero) digits is 12, while the sum is 15.

Adding to 111011201100123 its reverse (321001102110111), we get a palindrome (432012303210234).

The spelling of 111011201100123 in words is "one hundred eleven trillion, eleven billion, two hundred one million, one hundred thousand, one hundred twenty-three".