111123001203 has 16 divisors (see below), whose sum is σ = 150292396800. Its totient is φ = 73018380960.

The previous prime is 111123001201. The next prime is 111123001211. The reversal of 111123001203 is 302100321111.

It is a happy number.

It is not a de Polignac number, because 111123001203 - 2¹ = 111123001201 is a prime.

It is not an unprimeable number, because it can be changed into a prime (111123001201) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 719688 + ... + 860346.

It is an arithmetic number, because the mean of its divisors is an integer number (9393274800).

Almost surely, 2^111123001203 is an apocalyptic number.

111123001203 is a deficient number, since it is larger than the sum of its proper divisors (39169395597).

111123001203 is a wasteful number, since it uses less digits than its factorization.

111123001203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144442.

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 111123001203 its reverse (302100321111), we get a palindrome (413223322314).

The spelling of 111123001203 in words is "one hundred eleven billion, one hundred twenty-three million, one thousand, two hundred three".