111123120001 has 8 divisors (see below), whose sum is σ = 111631727520. Its totient is φ = 110614680288.

The previous prime is 111123119981. The next prime is 111123120007. The reversal of 111123120001 is 100021321111.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 111123120001 - 2⁵ = 111123119969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111123120007) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1398010 + ... + 1475356.

It is an arithmetic number, because the mean of its divisors is an integer number (13953965940).

Almost surely, 2^111123120001 is an apocalyptic number.

It is an amenable number.

111123120001 is a deficient number, since it is larger than the sum of its proper divisors (508607519).

111123120001 is an equidigital number, since it uses as much as digits as its factorization.

111123120001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83903.

The product of its (nonzero) digits is 12, while the sum is 13.

Adding to 111123120001 its reverse (100021321111), we get a palindrome (211144441112).

The spelling of 111123120001 in words is "one hundred eleven billion, one hundred twenty-three million, one hundred twenty thousand, one".