2102311321223 has 4 divisors (see below), whose sum is σ = 2170127815488. Its totient is φ = 2034494826960.

The previous prime is 2102311321213. The next prime is 2102311321259. The reversal of 2102311321223 is 3221231132012.

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 2102311321223 - 2⁴⁰ = 1002799693447 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2102311321213) 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, 33908247086 + ... + 33908247147.

It is an arithmetic number, because the mean of its divisors is an integer number (542531953872).

Almost surely, 2^{2102311321223} is an apocalyptic number.

2102311321223 is a deficient number, since it is larger than the sum of its proper divisors (67816494265).

2102311321223 is an equidigital number, since it uses as much as digits as its factorization.

2102311321223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67816494264.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 2102311321223 its reverse (3221231132012), we get a palindrome (5323542453235).

The spelling of 2102311321223 in words is "two trillion, one hundred two billion, three hundred eleven million, three hundred twenty-one thousand, two hundred twenty-three".