20324811 has 16 divisors (see below), whose sum is σ = 29738016. Its totient is φ = 12270336.

The previous prime is 20324789. The next prime is 20324819. The reversal of 20324811 is 11842302.

It is a de Polignac number, because none of the positive numbers 2^k-20324811 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20324819) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2850 + ... + 6983.

It is an arithmetic number, because the mean of its divisors is an integer number (1858626).

Almost surely, 2^20324811 is an apocalyptic number.

20324811 is a deficient number, since it is larger than the sum of its proper divisors (9413205).

20324811 is a wasteful number, since it uses less digits than its factorization.

20324811 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9902.

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 20324811 is about 4508.3046702724. The cubic root of 20324811 is about 272.9033322493.

The spelling of 20324811 in words is "twenty million, three hundred twenty-four thousand, eight hundred eleven".