11021123312 has 20 divisors (see below), whose sum is σ = 21399760536. Its totient is φ = 5498604480.

The previous prime is 11021123303. The next prime is 11021123327. The reversal of 11021123312 is 21332112011.

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, 739718 + ... + 754469.

Almost surely, 2^11021123312 is an apocalyptic number.

It is an amenable number.

11021123312 is a deficient number, since it is larger than the sum of its proper divisors (10378637224).

11021123312 is a wasteful number, since it uses less digits than its factorization.

11021123312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1494656 (or 1494650 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 11021123312 its reverse (21332112011), we get a palindrome (32353235323).

The spelling of 11021123312 in words is "eleven billion, twenty-one million, one hundred twenty-three thousand, three hundred twelve".