2143468823 has 4 divisors (see below), whose sum is σ = 2148059160. Its totient is φ = 2138878488.

The previous prime is 2143468819. The next prime is 2143468829. The reversal of 2143468823 is 3288643412.

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 2143468823 - 2² = 2143468819 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 (2143468829) 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, 2294468 + ... + 2295401.

It is an arithmetic number, because the mean of its divisors is an integer number (537014790).

Almost surely, 2^2143468823 is an apocalyptic number.

2143468823 is a deficient number, since it is larger than the sum of its proper divisors (4590337).

2143468823 is an equidigital number, since it uses as much as digits as its factorization.

2143468823 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4590336.

The product of its digits is 221184, while the sum is 41.

The square root of 2143468823 is about 46297.6114178691. The cubic root of 2143468823 is about 1289.3546484579.

The spelling of 2143468823 in words is "two billion, one hundred forty-three million, four hundred sixty-eight thousand, eight hundred twenty-three".