20803012 has 6 divisors (see below), whose sum is σ = 36405278. Its totient is φ = 10401504.

The previous prime is 20803007. The next prime is 20803021. The reversal of 20803012 is 21030802.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 17023876 + 3779136 = 4126^2 + 1944^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2600373 + ... + 2600380.

Almost surely, 2^20803012 is an apocalyptic number.

It is an amenable number.

20803012 is a deficient number, since it is larger than the sum of its proper divisors (15602266).

20803012 is a wasteful number, since it uses less digits than its factorization.

20803012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5200757 (or 5200755 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 20803012 is about 4561.0319007874. The cubic root of 20803012 is about 275.0270474774.

Adding to 20803012 its reverse (21030802), we get a palindrome (41833814).

The spelling of 20803012 in words is "twenty million, eight hundred three thousand, twelve".