1115243312 has 10 divisors (see below), whose sum is σ = 2160783948. Its totient is φ = 557621648.

The previous prime is 1115243309. The next prime is 1115243317. The reversal of 1115243312 is 2133425111.

It is a super-3 number, since 3×1115243312³ (a number of 28 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (1115243317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34851338 + ... + 34851369.

Almost surely, 2^1115243312 is an apocalyptic number.

It is an amenable number.

1115243312 is a deficient number, since it is larger than the sum of its proper divisors (1045540636).

1115243312 is an equidigital number, since it uses as much as digits as its factorization.

1115243312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69702715 (or 69702709 counting only the distinct ones).

The product of its digits is 720, while the sum is 23.

The square root of 1115243312 is about 33395.2588251686. The cubic root of 1115243312 is about 1037.0265511364.

Adding to 1115243312 its reverse (2133425111), we get a palindrome (3248668423).

The spelling of 1115243312 in words is "one billion, one hundred fifteen million, two hundred forty-three thousand, three hundred twelve".