11312133312 has 56 divisors (see below), whose sum is σ = 29937913200. Its totient is φ = 3769716736.

The previous prime is 11312133277. The next prime is 11312133323. The reversal of 11312133312 is 21333121311.

It is a happy number.

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

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, 1256764 + ... + 1265732.

Almost surely, 2^11312133312 is an apocalyptic number.

11312133312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11312133312 is an abundant number, since it is smaller than the sum of its proper divisors (18625779888).

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

11312133312 is an equidigital number, since it uses as much as digits as its factorization.

11312133312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15553 (or 15543 counting only the distinct ones).

The product of its digits is 324, while the sum is 21.

Adding to 11312133312 its reverse (21333121311), we get a palindrome (32645254623).

The spelling of 11312133312 in words is "eleven billion, three hundred twelve million, one hundred thirty-three thousand, three hundred twelve".