3243123405 has 96 divisors (see below), whose sum is σ = 6097628160. Its totient is φ = 1588654080.

The previous prime is 3243123379. The next prime is 3243123427. The reversal of 3243123405 is 5043213423.

3243123405 is a `hidden beast` number, since 3 + 2 + 4 + 312 + 340 + 5 = 666.

It is not a de Polignac number, because 3243123405 - 2⁷ = 3243123277 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 6224545 + ... + 6225065.

It is an arithmetic number, because the mean of its divisors is an integer number (63516960).

Almost surely, 2^3243123405 is an apocalyptic number.

It is an amenable number.

3243123405 is a deficient number, since it is larger than the sum of its proper divisors (2854504755).

3243123405 is a wasteful number, since it uses less digits than its factorization.

3243123405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 731 (or 728 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 27.

The square root of 3243123405 is about 56948.4275902329. The cubic root of 3243123405 is about 1480.2025844248.

Adding to 3243123405 its reverse (5043213423), we get a palindrome (8286336828).

The spelling of 3243123405 in words is "three billion, two hundred forty-three million, one hundred twenty-three thousand, four hundred five".