2123163673 has 4 divisors (see below), whose sum is σ = 2127523840. Its totient is φ = 2118803508.

The previous prime is 2123163661. The next prime is 2123163703. The reversal of 2123163673 is 3763613212.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2123163673 - 2⁵ = 2123163641 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2123163613) 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, 2179353 + ... + 2180326.

It is an arithmetic number, because the mean of its divisors is an integer number (531880960).

Almost surely, 2^2123163673 is an apocalyptic number.

It is an amenable number.

2123163673 is a deficient number, since it is larger than the sum of its proper divisors (4360167).

2123163673 is an equidigital number, since it uses as much as digits as its factorization.

2123163673 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4360166.

The product of its digits is 27216, while the sum is 34.

The square root of 2123163673 is about 46077.8002187604. The cubic root of 2123163673 is about 1285.2703581088.

Adding to 2123163673 its reverse (3763613212), we get a palindrome (5886776885).

The spelling of 2123163673 in words is "two billion, one hundred twenty-three million, one hundred sixty-three thousand, six hundred seventy-three".