111011200012123 has 4 divisors (see below), whose sum is σ = 111011235507808. Its totient is φ = 111011164516440.

The previous prime is 111011200012079. The next prime is 111011200012169. The reversal of 111011200012123 is 321210002110111.

It is a happy number.

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-111011200012123 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 111011200012097 and 111011200012106.

It is not an unprimeable number, because it can be changed into a prime (111011200012523) 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, 12549036 + ... + 19480777.

It is an arithmetic number, because the mean of its divisors is an integer number (27752808876952).

Almost surely, 2^{111011200012123} is an apocalyptic number.

111011200012123 is a deficient number, since it is larger than the sum of its proper divisors (35495685).

111011200012123 is an equidigital number, since it uses as much as digits as its factorization.

111011200012123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35495684.

The product of its (nonzero) digits is 24, while the sum is 16.

Adding to 111011200012123 its reverse (321210002110111), we get a palindrome (432221202122234).

The spelling of 111011200012123 in words is "one hundred eleven trillion, eleven billion, two hundred million, twelve thousand, one hundred twenty-three".