11518312 has 16 divisors (see below), whose sum is σ = 23258340. Its totient is φ = 5316096.

The previous prime is 11518303. The next prime is 11518321. The reversal of 11518312 is 21381511.

11518312 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (11518303) and next prime (11518321).

It can be written as a sum of positive squares in 2 ways, for example, as 11329956 + 188356 = 3366^2 + 434^2 .

It is a super-2 number, since 2×11518312² = 265343022658688, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55273 + ... + 55480.

Almost surely, 2^11518312 is an apocalyptic number.

It is an amenable number.

11518312 is an abundant number, since it is smaller than the sum of its proper divisors (11740028).

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

11518312 is a wasteful number, since it uses less digits than its factorization.

11518312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110772 (or 110768 counting only the distinct ones).

The product of its digits is 240, while the sum is 22.

The square root of 11518312 is about 3393.8638747009. The cubic root of 11518312 is about 225.8376153592.

Adding to 11518312 its reverse (21381511), we get a palindrome (32899823).

The spelling of 11518312 in words is "eleven million, five hundred eighteen thousand, three hundred twelve".