1120909312 has 48 divisors (see below), whose sum is σ = 2263879800. Its totient is φ = 554803200.

The previous prime is 1120909271. The next prime is 1120909319. The reversal of 1120909312 is 2139090211.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1120909319) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 204139 + ... + 209557.

Almost surely, 2^1120909312 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 1120909312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1131939900).

1120909312 is an abundant number, since it is smaller than the sum of its proper divisors (1142970488).

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

1120909312 is an equidigital number, since it uses as much as digits as its factorization.

1120909312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5542 (or 5522 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 28.

The square root of 1120909312 is about 33479.9837514895. The cubic root of 1120909312 is about 1038.7797917972.

Adding to 1120909312 its reverse (2139090211), we get a palindrome (3259999523).

The spelling of 1120909312 in words is "one billion, one hundred twenty million, nine hundred nine thousand, three hundred twelve".