2321120311 has 4 divisors (see below), whose sum is σ = 2321546400. Its totient is φ = 2320694224.

The previous prime is 2321120309. The next prime is 2321120341. The reversal of 2321120311 is 1130211232.

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 2321120311 - 2¹ = 2321120309 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 (2321120341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 204766 + ... + 215803.

It is an arithmetic number, because the mean of its divisors is an integer number (580386600).

Almost surely, 2^2321120311 is an apocalyptic number.

2321120311 is a deficient number, since it is larger than the sum of its proper divisors (426089).

2321120311 is an equidigital number, since it uses as much as digits as its factorization.

2321120311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 426088.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 2321120311 is about 48178.0065071190. The cubic root of 2321120311 is about 1324.0342431656.

Adding to 2321120311 its reverse (1130211232), we get a palindrome (3451331543).

The spelling of 2321120311 in words is "two billion, three hundred twenty-one million, one hundred twenty thousand, three hundred eleven".