1089113312 has 48 divisors (see below), whose sum is σ = 2461415040. Its totient is φ = 464684928.

The previous prime is 1089113287. The next prime is 1089113329. The reversal of 1089113312 is 2133119801.

It is a congruent number.

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, 40139 + ... + 61557.

It is an arithmetic number, because the mean of its divisors is an integer number (51279480).

Almost surely, 2^1089113312 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1089113312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1230707520).

1089113312 is an abundant number, since it is smaller than the sum of its proper divisors (1372301728).

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

1089113312 is a wasteful number, since it uses less digits than its factorization.

1089113312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21663 (or 21655 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 29.

The square root of 1089113312 is about 33001.7168038270. The cubic root of 1089113312 is about 1028.8633302330.

The spelling of 1089113312 in words is "one billion, eighty-nine million, one hundred thirteen thousand, three hundred twelve".