3243128111 has 4 divisors (see below), whose sum is σ = 3244150824. Its totient is φ = 3242105400.

The previous prime is 3243128101. The next prime is 3243128113. The reversal of 3243128111 is 1118213423.

3243128111 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 3243128111 - 2⁶ = 3243128047 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 (3243128113) 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, 506585 + ... + 512946.

It is an arithmetic number, because the mean of its divisors is an integer number (811037706).

Almost surely, 2^3243128111 is an apocalyptic number.

3243128111 is a deficient number, since it is larger than the sum of its proper divisors (1022713).

3243128111 is a wasteful number, since it uses less digits than its factorization.

3243128111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1022712.

The product of its digits is 1152, while the sum is 26.

The square root of 3243128111 is about 56948.4689083034. The cubic root of 3243128111 is about 1480.2033003838.

The spelling of 3243128111 in words is "three billion, two hundred forty-three million, one hundred twenty-eight thousand, one hundred eleven".