12020956 has 24 divisors (see below), whose sum is σ = 21560000. Its totient is φ = 5863104.

The previous prime is 12020947. The next prime is 12021001. The reversal of 12020956 is 65902021.

It is a self number, because there is not a number n which added to its sum of digits gives 12020956.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34270 + ... + 34618.

Almost surely, 2^12020956 is an apocalyptic number.

It is an amenable number.

12020956 is a deficient number, since it is larger than the sum of its proper divisors (9539044).

12020956 is a wasteful number, since it uses less digits than its factorization.

12020956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 541 (or 539 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 12020956 is about 3467.1250337996. The cubic root of 12020956 is about 229.0760411837.

Adding to 12020956 its reverse (65902021), we get a palindrome (77922977).

The spelling of 12020956 in words is "twelve million, twenty thousand, nine hundred fifty-six".