111231130111224 has 32 divisors (see below), whose sum is σ = 278078093511120. Its totient is φ = 37077007606016.

The previous prime is 111231130111177. The next prime is 111231130111253. The reversal of 111231130111224 is 422111031132111.

It is a super-2 number, since 2×111231130111224² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a junction number, because it is equal to n+sod(n) for n = 111231130111194 and 111231130111203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37791772 + ... + 40628564.

Almost surely, 2^{111231130111224} is an apocalyptic number.

It is an amenable number.

111231130111224 is an abundant number, since it is smaller than the sum of its proper divisors (166846963399896).

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

111231130111224 is a wasteful number, since it uses less digits than its factorization.

111231130111224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4470559 (or 4470555 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 24.

Adding to 111231130111224 its reverse (422111031132111), we get a palindrome (533342161243335).

The spelling of 111231130111224 in words is "one hundred eleven trillion, two hundred thirty-one billion, one hundred thirty million, one hundred eleven thousand, two hundred twenty-four".