111110124231 has 12 divisors (see below), whose sum is σ = 160711364008. Its totient is φ = 73972356624.

The previous prime is 111110124179. The next prime is 111110124233. The reversal of 111110124231 is 132421011111.

It is not a de Polignac number, because 111110124231 - 2¹⁹ = 111109599943 is a prime.

It is a super-2 number, since 2×111110124231² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111110124233) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8414665 + ... + 8427858.

Almost surely, 2^111110124231 is an apocalyptic number.

111110124231 is a deficient number, since it is larger than the sum of its proper divisors (49601239777).

111110124231 is a wasteful number, since it uses less digits than its factorization.

111110124231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16843262 (or 16843259 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 18.

Adding to 111110124231 its reverse (132421011111), we get a palindrome (243531135342).

The spelling of 111110124231 in words is "one hundred eleven billion, one hundred ten million, one hundred twenty-four thousand, two hundred thirty-one".