20202011 has 2 divisors, whose sum is σ = 20202012. Its totient is φ = 20202010.

The previous prime is 20201983. The next prime is 20202019. The reversal of 20202011 is 11020202.

It is an a-pointer prime, because the next prime (20202019) can be obtained adding 20202011 to its sum of digits (8).

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20202011 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20202011.

It is not a weakly prime, because it can be changed into another prime (20202019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10101005 + 10101006.

It is an arithmetic number, because the mean of its divisors is an integer number (10101006).

Almost surely, 2^20202011 is an apocalyptic number.

20202011 is a deficient number, since it is larger than the sum of its proper divisors (1).

20202011 is an equidigital number, since it uses as much as digits as its factorization.

20202011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8, while the sum is 8.

The square root of 20202011 is about 4494.6647260947. The cubic root of 20202011 is about 272.3526055289.

Adding to 20202011 its reverse (11020202), we get a palindrome (31222213).

It can be divided in two parts, 2020201 and 1, that added together give a palindrome (2020202).

The spelling of 20202011 in words is "twenty million, two hundred two thousand, eleven".