2123104323 has 4 divisors (see below), whose sum is σ = 2830805768. Its totient is φ = 1415402880.

The previous prime is 2123104307. The next prime is 2123104343. The reversal of 2123104323 is 3234013212.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 2123104323 - 2⁴ = 2123104307 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 2123104323.

It is not an unprimeable number, because it can be changed into a prime (2123104303) 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, 353850718 + ... + 353850723.

It is an arithmetic number, because the mean of its divisors is an integer number (707701442).

Almost surely, 2^2123104323 is an apocalyptic number.

2123104323 is a deficient number, since it is larger than the sum of its proper divisors (707701445).

2123104323 is an equidigital number, since it uses as much as digits as its factorization.

2123104323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 707701444.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 2123104323 is about 46077.1561948000. The cubic root of 2123104323 is about 1285.2583820331.

Adding to 2123104323 its reverse (3234013212), we get a palindrome (5357117535).

The spelling of 2123104323 in words is "two billion, one hundred twenty-three million, one hundred four thousand, three hundred twenty-three".