111223403012 has 48 divisors (see below), whose sum is σ = 198088338672. Its totient is φ = 54636556800.

The previous prime is 111223402949. The next prime is 111223403047. The reversal of 111223403012 is 210304322111.

It can be written as a sum of positive squares in 8 ways, for example, as 42125920516 + 69097482496 = 205246^2 + 262864^2 .

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, 45638258 + ... + 45640694.

It is an arithmetic number, because the mean of its divisors is an integer number (4126840389).

Almost surely, 2^111223403012 is an apocalyptic number.

It is an amenable number.

111223403012 is a deficient number, since it is larger than the sum of its proper divisors (86864935660).

111223403012 is a wasteful number, since it uses less digits than its factorization.

111223403012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3368 (or 3366 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 111223403012 its reverse (210304322111), we get a palindrome (321527725123).

The spelling of 111223403012 in words is "one hundred eleven billion, two hundred twenty-three million, four hundred three thousand, twelve".