111131231203223 has 16 divisors (see below), whose sum is σ = 138553618398720. Its totient is φ = 86595517648800.

The previous prime is 111131231203183. The next prime is 111131231203259. The reversal of 111131231203223 is 322302132131111.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111131231203223 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 111131231203192 and 111131231203201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111131231203273) 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, 27943238 + ... + 31671548.

It is an arithmetic number, because the mean of its divisors is an integer number (8659601149920).

Almost surely, 2^{111131231203223} is an apocalyptic number.

111131231203223 is a deficient number, since it is larger than the sum of its proper divisors (27422387195497).

111131231203223 is a wasteful number, since it uses less digits than its factorization.

111131231203223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4115438.

The product of its (nonzero) digits is 1296, while the sum is 26.

Adding to 111131231203223 its reverse (322302132131111), we get a palindrome (433433363334334).

The spelling of 111131231203223 in words is "one hundred eleven trillion, one hundred thirty-one billion, two hundred thirty-one million, two hundred three thousand, two hundred twenty-three".