11511012 has 24 divisors (see below), whose sum is σ = 26963776. Its totient is φ = 3822048.

The previous prime is 11511001. The next prime is 11511029. The reversal of 11511012 is 21011511.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1593 + ... + 5055.

Almost surely, 2^11511012 is an apocalyptic number.

11511012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11511012 is an abundant number, since it is smaller than the sum of its proper divisors (15452764).

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

11511012 is a wasteful number, since it uses less digits than its factorization.

11511012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3747 (or 3745 counting only the distinct ones).

The product of its (nonzero) digits is 10, while the sum is 12.

The square root of 11511012 is about 3392.7882338867. The cubic root of 11511012 is about 225.7898953172.

Adding to 11511012 its reverse (21011511), we get a palindrome (32522523).

The spelling of 11511012 in words is "eleven million, five hundred eleven thousand, twelve".