11520012 has 24 divisors (see below), whose sum is σ = 30720256. Its totient is φ = 3291408.

The previous prime is 11519983. The next prime is 11520013. The reversal of 11520012 is 21002511.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a self number, because there is not a number n which added to its sum of digits gives 11520012.

It is not an unprimeable number, because it can be changed into a prime (11520013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 68488 + ... + 68655.

Almost surely, 2^11520012 is an apocalyptic number.

11520012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11520012 is an abundant number, since it is smaller than the sum of its proper divisors (19200244).

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

11520012 is a wasteful number, since it uses less digits than its factorization.

11520012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137157 (or 137155 counting only the distinct ones).

The product of its (nonzero) digits is 20, while the sum is 12.

The square root of 11520012 is about 3394.1143174619. The cubic root of 11520012 is about 225.8487253511.

Adding to 11520012 its reverse (21002511), we get a palindrome (32522523).

The spelling of 11520012 in words is "eleven million, five hundred twenty thousand, twelve".