111311204501023 has 16 divisors (see below), whose sum is σ = 120172034119680. Its totient is φ = 102786454352736.

The previous prime is 111311204500981. The next prime is 111311204501083. The reversal of 111311204501023 is 320105402113111.

It is a cyclic number.

It is not a de Polignac number, because 111311204501023 - 2³³ = 111302614566431 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111311204501083) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6108015 + ... + 16122352.

It is an arithmetic number, because the mean of its divisors is an integer number (7510752132480).

Almost surely, 2^{111311204501023} is an apocalyptic number.

111311204501023 is a deficient number, since it is larger than the sum of its proper divisors (8860829618657).

111311204501023 is a wasteful number, since it uses less digits than its factorization.

111311204501023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22237926.

The product of its (nonzero) digits is 720, while the sum is 25.

Adding to 111311204501023 its reverse (320105402113111), we get a palindrome (431416606614134).

The spelling of 111311204501023 in words is "one hundred eleven trillion, three hundred eleven billion, two hundred four million, five hundred one thousand, twenty-three".