10820431323203 has 4 divisors (see below), whose sum is σ = 10865329378728. Its totient is φ = 10775533267680.

The previous prime is 10820431323133. The next prime is 10820431323269. The reversal of 10820431323203 is 30232313402801.

It is a happy number.

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 10820431323203 - 2³² = 10816136355907 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 10820431323203.

It is not an unprimeable number, because it can be changed into a prime (10820431323503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22449027401 + ... + 22449027882.

It is an arithmetic number, because the mean of its divisors is an integer number (2716332344682).

Almost surely, 2^{10820431323203} is an apocalyptic number.

10820431323203 is a deficient number, since it is larger than the sum of its proper divisors (44898055525).

10820431323203 is an equidigital number, since it uses as much as digits as its factorization.

10820431323203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44898055524.

The product of its (nonzero) digits is 20736, while the sum is 32.

The spelling of 10820431323203 in words is "ten trillion, eight hundred twenty billion, four hundred thirty-one million, three hundred twenty-three thousand, two hundred three".