111441021124 has 18 divisors (see below), whose sum is σ = 203869660190. Its totient is φ = 53297878656.

The previous prime is 111441021121. The next prime is 111441021161. The reversal of 111441021124 is 421120144111.

It can be written as a sum of positive squares in only one way, i.e., 84518118400 + 26922902724 = 290720^2 + 164082^2 .

It is a junction number, because it is equal to n+sod(n) for n = 111441021095 and 111441021104.

It is not an unprimeable number, because it can be changed into a prime (111441021121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 26330829 + ... + 26335060.

Almost surely, 2^111441021124 is an apocalyptic number.

It is an amenable number.

111441021124 is a deficient number, since it is larger than the sum of its proper divisors (92428639066).

111441021124 is a wasteful number, since it uses less digits than its factorization.

111441021124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52665939 (or 52665914 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 22.

Adding to 111441021124 its reverse (421120144111), we get a palindrome (532561165235).

The spelling of 111441021124 in words is "one hundred eleven billion, four hundred forty-one million, twenty-one thousand, one hundred twenty-four".