2323128911 has 4 divisors (see below), whose sum is σ = 2323264824. Its totient is φ = 2322993000.

The previous prime is 2323128889. The next prime is 2323128937. The reversal of 2323128911 is 1198213232.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2323128911 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 (2323128971) 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, 37880 + ... + 77981.

It is an arithmetic number, because the mean of its divisors is an integer number (580816206).

Almost surely, 2^2323128911 is an apocalyptic number.

2323128911 is a deficient number, since it is larger than the sum of its proper divisors (135913).

2323128911 is a wasteful number, since it uses less digits than its factorization.

2323128911 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135912.

The product of its digits is 5184, while the sum is 32.

The square root of 2323128911 is about 48198.8476107054. The cubic root of 2323128911 is about 1324.4160542548.

The spelling of 2323128911 in words is "two billion, three hundred twenty-three million, one hundred twenty-eight thousand, nine hundred eleven".