11234521812 has 12 divisors (see below), whose sum is σ = 26213884256. Its totient is φ = 3744840600.

The previous prime is 11234521783. The next prime is 11234521853. The reversal of 11234521812 is 21812543211.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 11234521812.

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, 468105064 + ... + 468105087.

Almost surely, 2^11234521812 is an apocalyptic number.

11234521812 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11234521812 is an abundant number, since it is smaller than the sum of its proper divisors (14979362444).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11234521812 is a wasteful number, since it uses less digits than its factorization.

11234521812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 936210158 (or 936210156 counting only the distinct ones).

The product of its digits is 3840, while the sum is 30.

The spelling of 11234521812 in words is "eleven billion, two hundred thirty-four million, five hundred twenty-one thousand, eight hundred twelve".