111043012 has 6 divisors (see below), whose sum is σ = 194325278. Its totient is φ = 55521504.

The previous prime is 111042989. The next prime is 111043013. The reversal of 111043012 is 210340111.

It can be written as a sum of positive squares in only one way, i.e., 104571076 + 6471936 = 10226^2 + 2544^2 .

It is a junction number, because it is equal to n+sod(n) for n = 111042983 and 111043001.

It is not an unprimeable number, because it can be changed into a prime (111043013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13880373 + ... + 13880380.

Almost surely, 2^111043012 is an apocalyptic number.

It is an amenable number.

111043012 is a deficient number, since it is larger than the sum of its proper divisors (83282266).

111043012 is a wasteful number, since it uses less digits than its factorization.

111043012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27760757 (or 27760755 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 111043012 is about 10537.6948143320. The cubic root of 111043012 is about 480.6516207833.

Adding to 111043012 its reverse (210340111), we get a palindrome (321383123).

The spelling of 111043012 in words is "one hundred eleven million, forty-three thousand, twelve".