10820573811 has 20 divisors (see below), whose sum is σ = 16172279200. Its totient is φ = 7210051056.

The previous prime is 10820573801. The next prime is 10820573843. The reversal of 10820573811 is 11837502801.

10820573811 is a `hidden beast` number, since 1 + 0 + 8 + 2 + 0 + 573 + 81 + 1 = 666.

It is not a de Polignac number, because 10820573811 - 2⁶ = 10820573747 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10820573801) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 131430 + ... + 197268.

It is an arithmetic number, because the mean of its divisors is an integer number (808613960).

Almost surely, 2^10820573811 is an apocalyptic number.

10820573811 is a deficient number, since it is larger than the sum of its proper divisors (5351705389).

10820573811 is an equidigital number, since it uses as much as digits as its factorization.

10820573811 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67880 (or 67871 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 36.

The spelling of 10820573811 in words is "ten billion, eight hundred twenty million, five hundred seventy-three thousand, eight hundred eleven".