111212231233023 has 32 divisors (see below), whose sum is σ = 168267474662400. Its totient is φ = 72562669616448.

The previous prime is 111212231233009. The next prime is 111212231233057. The reversal of 111212231233023 is 320332132212111.

111212231233023 is a `hidden beast` number, since 1 + 1 + 1 + 2 + 12 + 2 + 312 + 330 + 2 + 3 = 666.

It is not a de Polignac number, because 111212231233023 - 2²⁵ = 111212197678591 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111212231233003) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 70439323 + ... + 72000851.

It is an arithmetic number, because the mean of its divisors is an integer number (5258358583200).

Almost surely, 2^{111212231233023} is an apocalyptic number.

111212231233023 is a deficient number, since it is larger than the sum of its proper divisors (57055243429377).

111212231233023 is a wasteful number, since it uses less digits than its factorization.

111212231233023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1617708 (or 1617702 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

Adding to 111212231233023 its reverse (320332132212111), we get a palindrome (431544363445134).

The spelling of 111212231233023 in words is "one hundred eleven trillion, two hundred twelve billion, two hundred thirty-one million, two hundred thirty-three thousand, twenty-three".