20201330 has 16 divisors (see below), whose sum is σ = 36419544. Its totient is φ = 8067840.

The previous prime is 20201329. The next prime is 20201341. The reversal of 20201330 is 3310202.

It can be written as a sum of positive squares in 4 ways, for example, as 10843849 + 9357481 = 3293^2 + 3059^2 .

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, 7664 + ... + 9956.

Almost surely, 2^20201330 is an apocalyptic number.

20201330 is a deficient number, since it is larger than the sum of its proper divisors (16218214).

20201330 is a wasteful number, since it uses less digits than its factorization.

20201330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3181.

The product of its (nonzero) digits is 36, while the sum is 11.

The square root of 20201330 is about 4494.5889689715. The cubic root of 20201330 is about 272.3495452030.

Adding to 20201330 its reverse (3310202), we get a palindrome (23511532).

The spelling of 20201330 in words is "twenty million, two hundred one thousand, three hundred thirty".