10646143220323 has 4 divisors (see below), whose sum is σ = 11465077314208. Its totient is φ = 9827209126440.

The previous prime is 10646143220299. The next prime is 10646143220327. The reversal of 10646143220323 is 32302234164601.

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 10646143220323 - 2⁵ = 10646143220291 is a prime.

It is a super-2 number, since 2×10646143220323² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10646143220327) 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, 409467046923 + ... + 409467046948.

It is an arithmetic number, because the mean of its divisors is an integer number (2866269328552).

Almost surely, 2^{10646143220323} is an apocalyptic number.

10646143220323 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

10646143220323 is a deficient number, since it is larger than the sum of its proper divisors (818934093885).

10646143220323 is an equidigital number, since it uses as much as digits as its factorization.

10646143220323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 818934093884.

The product of its (nonzero) digits is 124416, while the sum is 37.

Adding to 10646143220323 its reverse (32302234164601), we get a palindrome (42948377384924).

The spelling of 10646143220323 in words is "ten trillion, six hundred forty-six billion, one hundred forty-three million, two hundred twenty thousand, three hundred twenty-three".