111331032231 has 8 divisors (see below), whose sum is σ = 149107033600. Its totient is φ = 73887859512.

The previous prime is 111331032223. The next prime is 111331032283. The reversal of 111331032231 is 132230133111.

It is a happy number.

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

It is not a de Polignac number, because 111331032231 - 2³ = 111331032223 is a prime.

It is a super-2 number, since 2×111331032231² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 111331032198 and 111331032207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111331032221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 83206381 + ... + 83207718.

It is an arithmetic number, because the mean of its divisors is an integer number (18638379200).

Almost surely, 2^111331032231 is an apocalyptic number.

111331032231 is a deficient number, since it is larger than the sum of its proper divisors (37776001369).

111331032231 is a wasteful number, since it uses less digits than its factorization.

111331032231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166414325.

The product of its (nonzero) digits is 324, while the sum is 21.

Adding to 111331032231 its reverse (132230133111), we get a palindrome (243561165342).

The spelling of 111331032231 in words is "one hundred eleven billion, three hundred thirty-one million, thirty-two thousand, two hundred thirty-one".