1103665312 has 48 divisors (see below), whose sum is σ = 2300205600. Its totient is φ = 519816960.

The previous prime is 1103665301. The next prime is 1103665333. The reversal of 1103665312 is 2135663011.

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, 103762 + ... + 113902.

It is an arithmetic number, because the mean of its divisors is an integer number (47920950).

Almost surely, 2^1103665312 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 1103665312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1150102800).

1103665312 is an abundant number, since it is smaller than the sum of its proper divisors (1196540288).

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

1103665312 is a wasteful number, since it uses less digits than its factorization.

1103665312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10349 (or 10341 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 28.

The square root of 1103665312 is about 33221.4586073520. The cubic root of 1103665312 is about 1033.4253984800.

The spelling of 1103665312 in words is "one billion, one hundred three million, six hundred sixty-five thousand, three hundred twelve".