2123255443 has 8 divisors (see below), whose sum is σ = 2278950768. Its totient is φ = 1970982144.

The previous prime is 2123255417. The next prime is 2123255447. The reversal of 2123255443 is 3445523212.

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 2123255443 - 2⁵ = 2123255411 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2123255447) 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, 854221 + ... + 856702.

It is an arithmetic number, because the mean of its divisors is an integer number (284868846).

Almost surely, 2^2123255443 is an apocalyptic number.

2123255443 is a deficient number, since it is larger than the sum of its proper divisors (155695325).

2123255443 is a wasteful number, since it uses less digits than its factorization.

2123255443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1711013.

The product of its digits is 28800, while the sum is 31.

The square root of 2123255443 is about 46078.7960237678. The cubic root of 2123255443 is about 1285.2888756891.

Adding to 2123255443 its reverse (3445523212), we get a palindrome (5568778655).

Subtracting 2123255443 from its reverse (3445523212), we obtain a square (1322267769 = 36363²).

The spelling of 2123255443 in words is "two billion, one hundred twenty-three million, two hundred fifty-five thousand, four hundred forty-three".