11123340212 has 12 divisors (see below), whose sum is σ = 19619120640. Its totient is φ = 5517877176.

The previous prime is 11123340209. The next prime is 11123340281. The reversal of 11123340212 is 21204332111.

It is a congruent number.

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, 10947662 + ... + 10948677.

It is an arithmetic number, because the mean of its divisors is an integer number (1634926720).

Almost surely, 2^11123340212 is an apocalyptic number.

It is an amenable number.

11123340212 is a deficient number, since it is larger than the sum of its proper divisors (8495780428).

11123340212 is a wasteful number, since it uses less digits than its factorization.

11123340212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21896470 (or 21896468 counting only the distinct ones).

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

Adding to 11123340212 its reverse (21204332111), we get a palindrome (32327672323).

The spelling of 11123340212 in words is "eleven billion, one hundred twenty-three million, three hundred forty thousand, two hundred twelve".