11212389132 has 144 divisors (see below), whose sum is σ = 32500177920. Its totient is φ = 2993155200.

The previous prime is 11212389121. The next prime is 11212389169. The reversal of 11212389132 is 23198321211.

It is a junction number, because it is equal to n+sod(n) for n = 11212389093 and 11212389102.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 518007 + ... + 539217.

It is an arithmetic number, because the mean of its divisors is an integer number (225695680).

Almost surely, 2^11212389132 is an apocalyptic number.

11212389132 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 11212389132, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16250088960).

11212389132 is an abundant number, since it is smaller than the sum of its proper divisors (21287788788).

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

11212389132 is a wasteful number, since it uses less digits than its factorization.

11212389132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21292 (or 21283 counting only the distinct ones).

The product of its digits is 5184, while the sum is 33.

The spelling of 11212389132 in words is "eleven billion, two hundred twelve million, three hundred eighty-nine thousand, one hundred thirty-two".