2143221320323 has 8 divisors (see below), whose sum is σ = 2182131445760. Its totient is φ = 2104432980480.

The previous prime is 2143221320269. The next prime is 2143221320333. The reversal of 2143221320323 is 3230231223412.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2143221320323 - 2²⁵ = 2143187765891 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2143221320291 and 2143221320300.

It is not an unprimeable number, because it can be changed into a prime (2143221320333) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30410883 + ... + 30481276.

It is an arithmetic number, because the mean of its divisors is an integer number (272766430720).

Almost surely, 2^{2143221320323} is an apocalyptic number.

2143221320323 is a deficient number, since it is larger than the sum of its proper divisors (38910125437).

2143221320323 is an equidigital number, since it uses as much as digits as its factorization.

2143221320323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60892797.

The product of its (nonzero) digits is 10368, while the sum is 28.

Adding to 2143221320323 its reverse (3230231223412), we get a palindrome (5373452543735).

The spelling of 2143221320323 in words is "two trillion, one hundred forty-three billion, two hundred twenty-one million, three hundred twenty thousand, three hundred twenty-three".