11233212312 has 64 divisors (see below), whose sum is σ = 32123047680. Its totient is φ = 3206673792.

The previous prime is 11233212271. The next prime is 11233212323. The reversal of 11233212312 is 21321233211.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 166638 + ... + 224130.

It is an arithmetic number, because the mean of its divisors is an integer number (501922620).

Almost surely, 2^11233212312 is an apocalyptic number.

11233212312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11233212312 is an abundant number, since it is smaller than the sum of its proper divisors (20889835368).

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

11233212312 is a wasteful number, since it uses less digits than its factorization.

11233212312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58672 (or 58668 counting only the distinct ones).

The product of its digits is 432, while the sum is 21.

Adding to 11233212312 its reverse (21321233211), we get a palindrome (32554445523).

The spelling of 11233212312 in words is "eleven billion, two hundred thirty-three million, two hundred twelve thousand, three hundred twelve".