11294991312 has 120 divisors (see below), whose sum is σ = 32367348000. Its totient is φ = 3366028800.

The previous prime is 11294991307. The next prime is 11294991319. The reversal of 11294991312 is 21319949211.

It is a happy number.

11294991312 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11294991319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1961814 + ... + 1967562.

It is an arithmetic number, because the mean of its divisors is an integer number (269727900).

Almost surely, 2^11294991312 is an apocalyptic number.

11294991312 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 11294991312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16183674000).

11294991312 is an abundant number, since it is smaller than the sum of its proper divisors (21072356688).

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

11294991312 is a wasteful number, since it uses less digits than its factorization.

11294991312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5893 (or 5826 counting only the distinct ones).

The product of its digits is 34992, while the sum is 42.

The spelling of 11294991312 in words is "eleven billion, two hundred ninety-four million, nine hundred ninety-one thousand, three hundred twelve".