11123003321212 has 24 divisors (see below), whose sum is σ = 19944941586192. Its totient is φ = 5424515568000.

The previous prime is 11123003321203. The next prime is 11123003321267. The reversal of 11123003321212 is 21212330032111.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7706803 + ... + 9035530.

It is an arithmetic number, because the mean of its divisors is an integer number (831039232758).

Almost surely, 2^{11123003321212} is an apocalyptic number.

It is an amenable number.

11123003321212 is a deficient number, since it is larger than the sum of its proper divisors (8821938264980).

11123003321212 is a wasteful number, since it uses less digits than its factorization.

11123003321212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16746429 (or 16746427 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 11123003321212 its reverse (21212330032111), we get a palindrome (32335333353323).

The spelling of 11123003321212 in words is "eleven trillion, one hundred twenty-three billion, three million, three hundred twenty-one thousand, two hundred twelve".