111023120002001 has 8 divisors (see below), whose sum is σ = 112131421933224. Its totient is φ = 109914995779200.

The previous prime is 111023120001979. The next prime is 111023120002033. The reversal of 111023120002001 is 100200021320111.

It can be written as a sum of positive squares in 4 ways, for example, as 77034394901776 + 33988725100225 = 8776924^2 + 5829985^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111023120002001 is a prime.

It is a super-2 number, since 2×111023120002001² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111023120002601) 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, 43171196 + ... + 45670541.

It is an arithmetic number, because the mean of its divisors is an integer number (14016427741653).

Almost surely, 2^{111023120002001} is an apocalyptic number.

It is an amenable number.

111023120002001 is a deficient number, since it is larger than the sum of its proper divisors (1108301931223).

111023120002001 is a wasteful number, since it uses less digits than its factorization.

111023120002001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88854211.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 111023120002001 its reverse (100200021320111), we get a palindrome (211223141322112).

The spelling of 111023120002001 in words is "one hundred eleven trillion, twenty-three billion, one hundred twenty million, two thousand, one".