111123143204 has 12 divisors (see below), whose sum is σ = 196353515904. Its totient is φ = 55022138664.

The previous prime is 111123143137. The next prime is 111123143251. The reversal of 111123143204 is 402341321111.

It is a self number, because there is not a number n which added to its sum of digits gives 111123143204.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 134857772 + ... + 134858595.

It is an arithmetic number, because the mean of its divisors is an integer number (16362792992).

Almost surely, 2^111123143204 is an apocalyptic number.

It is an amenable number.

111123143204 is a deficient number, since it is larger than the sum of its proper divisors (85230372700).

111123143204 is a wasteful number, since it uses less digits than its factorization.

111123143204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 269716474 (or 269716472 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 23.

Adding to 111123143204 its reverse (402341321111), we get a palindrome (513464464315).

The spelling of 111123143204 in words is "one hundred eleven billion, one hundred twenty-three million, one hundred forty-three thousand, two hundred four".