11312130312 has 96 divisors (see below), whose sum is σ = 35180009280. Its totient is φ = 3216689280.

The previous prime is 11312130197. The next prime is 11312130329. The reversal of 11312130312 is 21303121311.

11312130312 is a `hidden beast` number, since 11 + 312 + 1 + 30 + 312 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 53158 + ... + 159530.

It is an arithmetic number, because the mean of its divisors is an integer number (366458430).

Almost surely, 2^11312130312 is an apocalyptic number.

11312130312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11312130312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17590004640).

11312130312 is an abundant number, since it is smaller than the sum of its proper divisors (23867878968).

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

11312130312 is a wasteful number, since it uses less digits than its factorization.

11312130312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106603 (or 106596 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 11312130312 its reverse (21303121311), we get a palindrome (32615251623).

Subtracting 11312130312 from its reverse (21303121311), we obtain a palindrome (9990990999).

The spelling of 11312130312 in words is "eleven billion, three hundred twelve million, one hundred thirty thousand, three hundred twelve".