33031012 has 48 divisors (see below), whose sum is σ = 68245632. Its totient is φ = 13697280.

The previous prime is 33030979. The next prime is 33031093. The reversal of 33031012 is 21013033.

It is a junction number, because it is equal to n+sod(n) for n = 33030983 and 33031001.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 141648 + ... + 141880.

It is an arithmetic number, because the mean of its divisors is an integer number (1421784).

Almost surely, 2^33031012 is an apocalyptic number.

It is an amenable number.

33031012 is an abundant number, since it is smaller than the sum of its proper divisors (35214620).

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

33031012 is a wasteful number, since it uses less digits than its factorization.

33031012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 388 (or 386 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 13.

The square root of 33031012 is about 5747.2612608094. The cubic root of 33031012 is about 320.8538783643.

Adding to 33031012 its reverse (21013033), we get a palindrome (54044045).

The spelling of 33031012 in words is "thirty-three million, thirty-one thousand, twelve".