11123133020012 has 18 divisors (see below), whose sum is σ = 21078007987428. Its totient is φ = 5133753701232.

The previous prime is 11123133020003. The next prime is 11123133020017. The reversal of 11123133020012 is 21002033132111.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (11123133020017) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8227168718 + ... + 8227170069.

It is an arithmetic number, because the mean of its divisors is an integer number (1171000443746).

Almost surely, 2^{11123133020012} is an apocalyptic number.

It is an amenable number.

11123133020012 is a deficient number, since it is larger than the sum of its proper divisors (9954874967416).

11123133020012 is a wasteful number, since it uses less digits than its factorization.

11123133020012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16454338817 (or 16454338802 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 11123133020012 its reverse (21002033132111), we get a palindrome (32125166152123).

The spelling of 11123133020012 in words is "eleven trillion, one hundred twenty-three billion, one hundred thirty-three million, twenty thousand, twelve".