111231031040424 has 64 divisors (see below), whose sum is σ = 309037748904000. Its totient is φ = 37069490825280.

The previous prime is 111231031040329. The next prime is 111231031040473. The reversal of 111231031040424 is 424040130132111.

It is a happy number.

111231031040424 is a `hidden beast` number, since 1 + 1 + 1 + 231 + 0 + 3 + 1 + 0 + 4 + 0 + 424 = 666.

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

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 51151339 + ... + 53281530.

It is an arithmetic number, because the mean of its divisors is an integer number (4828714826625).

Almost surely, 2^{111231031040424} is an apocalyptic number.

It is an amenable number.

111231031040424 is an abundant number, since it is smaller than the sum of its proper divisors (197806717863576).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

111231031040424 is a wasteful number, since it uses less digits than its factorization.

111231031040424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104437815 (or 104437805 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

Adding to 111231031040424 its reverse (424040130132111), we get a palindrome (535271161172535).

The spelling of 111231031040424 in words is "one hundred eleven trillion, two hundred thirty-one billion, thirty-one million, forty thousand, four hundred twenty-four".