11312012 has 12 divisors (see below), whose sum is σ = 20091960. Its totient is φ = 5571456.

The previous prime is 11312009. The next prime is 11312033. The reversal of 11312012 is 21021311.

11312012 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 11311984 and 11312002.

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, 20837 + ... + 21372.

It is an arithmetic number, because the mean of its divisors is an integer number (1674330).

Almost surely, 2^11312012 is an apocalyptic number.

It is an amenable number.

11312012 is a deficient number, since it is larger than the sum of its proper divisors (8779948).

11312012 is a wasteful number, since it uses less digits than its factorization.

11312012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42280 (or 42278 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 11.

The square root of 11312012 is about 3363.3334654774. Note that the first 3 decimals coincide. The cubic root of 11312012 is about 224.4811881665.

Adding to 11312012 its reverse (21021311), we get a palindrome (32333323).

The spelling of 11312012 in words is "eleven million, three hundred twelve thousand, twelve".