11285831284 has 96 divisors (see below), whose sum is σ = 25573766400. Its totient is φ = 4237470720.

The previous prime is 11285831273. The next prime is 11285831311. The reversal of 11285831284 is 48213858211.

It is a self number, because there is not a number n which added to its sum of digits gives 11285831284.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 613744 + ... + 631864.

It is an arithmetic number, because the mean of its divisors is an integer number (266393400).

Almost surely, 2^11285831284 is an apocalyptic number.

11285831284 is a gapful number since it is divisible by the number (14) 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 11285831284, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12786883200).

11285831284 is an abundant number, since it is smaller than the sum of its proper divisors (14287935116).

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

11285831284 is a wasteful number, since it uses less digits than its factorization.

11285831284 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18233 (or 18231 counting only the distinct ones).

The product of its digits is 122880, while the sum is 43.

The spelling of 11285831284 in words is "eleven billion, two hundred eighty-five million, eight hundred thirty-one thousand, two hundred eighty-four".