2320123121 has 2 divisors, whose sum is σ = 2320123122. Its totient is φ = 2320123120.

The previous prime is 2320123067. The next prime is 2320123159. The reversal of 2320123121 is 1213210232.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1788359521 + 531763600 = 42289^2 + 23060^2 .

It is a cyclic number.

It is not a de Polignac number, because 2320123121 - 2²² = 2315928817 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2320123121.

It is not a weakly prime, because it can be changed into another prime (2320423121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1160061560 + 1160061561.

It is an arithmetic number, because the mean of its divisors is an integer number (1160061561).

Almost surely, 2^2320123121 is an apocalyptic number.

It is an amenable number.

2320123121 is a deficient number, since it is larger than the sum of its proper divisors (1).

2320123121 is an equidigital number, since it uses as much as digits as its factorization.

2320123121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 2320123121 is about 48167.6563785285. The cubic root of 2320123121 is about 1323.8446073216.

Adding to 2320123121 its reverse (1213210232), we get a palindrome (3533333353).

The spelling of 2320123121 in words is "two billion, three hundred twenty million, one hundred twenty-three thousand, one hundred twenty-one".