2321120111 has 2 divisors, whose sum is σ = 2321120112. Its totient is φ = 2321120110.

The previous prime is 2321120101. The next prime is 2321120261. The reversal of 2321120111 is 1110211232.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2321120111 - 2¹⁴ = 2321103727 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2321120101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1160560055 + 1160560056.

It is an arithmetic number, because the mean of its divisors is an integer number (1160560056).

Almost surely, 2^2321120111 is an apocalyptic number.

2321120111 is a deficient number, since it is larger than the sum of its proper divisors (1).

2321120111 is an equidigital number, since it uses as much as digits as its factorization.

2321120111 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24, while the sum is 14.

The square root of 2321120111 is about 48178.0044314830. The cubic root of 2321120111 is about 1324.0342051370.

Adding to 2321120111 its reverse (1110211232), we get a palindrome (3431331343).

The spelling of 2321120111 in words is "two billion, three hundred twenty-one million, one hundred twenty thousand, one hundred eleven".