10820057203 has 4 divisors (see below), whose sum is σ = 10823118120. Its totient is φ = 10816996288.

The previous prime is 10820057189. The next prime is 10820057323. The reversal of 10820057203 is 30275002801.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 10820057203 - 2²¹ = 10817960051 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10820057603) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1525150 + ... + 1532227.

It is an arithmetic number, because the mean of its divisors is an integer number (2705779530).

Almost surely, 2^10820057203 is an apocalyptic number.

10820057203 is a deficient number, since it is larger than the sum of its proper divisors (3060917).

10820057203 is an equidigital number, since it uses as much as digits as its factorization.

10820057203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3060916.

The product of its (nonzero) digits is 3360, while the sum is 28.

The spelling of 10820057203 in words is "ten billion, eight hundred twenty million, fifty-seven thousand, two hundred three".