11512012 has 6 divisors (see below), whose sum is σ = 20146028. Its totient is φ = 5756004.

The previous prime is 11511989. The next prime is 11512013. The reversal of 11512012 is 21021511.

It is a junction number, because it is equal to n+sod(n) for n = 11511983 and 11512001.

It is not an unprimeable number, because it can be changed into a prime (11512013) by changing a digit.

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 as a sum of consecutive naturals, namely, 1438998 + ... + 1439005.

Almost surely, 2^11512012 is an apocalyptic number.

It is an amenable number.

11512012 is a deficient number, since it is larger than the sum of its proper divisors (8634016).

11512012 is a wasteful number, since it uses less digits than its factorization.

11512012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2878007 (or 2878005 counting only the distinct ones).

The product of its (nonzero) digits is 20, while the sum is 13.

The square root of 11512012 is about 3392.9356021003. The cubic root of 11512012 is about 225.7964335016.

Adding to 11512012 its reverse (21021511), we get a palindrome (32533523).

The spelling of 11512012 in words is "eleven million, five hundred twelve thousand, twelve".