2321142121 has 2 divisors, whose sum is σ = 2321142122. Its totient is φ = 2321142120.

The previous prime is 2321142079. The next prime is 2321142139. The reversal of 2321142121 is 1212411232.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2078904025 + 242238096 = 45595^2 + 15564^2 .

It is a cyclic number.

It is not a de Polignac number, because 2321142121 - 2⁷ = 2321141993 is a prime.

It is not a weakly prime, because it can be changed into another prime (2321142151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1160571060 + 1160571061.

It is an arithmetic number, because the mean of its divisors is an integer number (1160571061).

Almost surely, 2^2321142121 is an apocalyptic number.

It is an amenable number.

2321142121 is a deficient number, since it is larger than the sum of its proper divisors (1).

2321142121 is an equidigital number, since it uses as much as digits as its factorization.

2321142121 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 192, while the sum is 19.

The square root of 2321142121 is about 48178.2328546824. The cubic root of 2321142121 is about 1324.0383901712.

Adding to 2321142121 its reverse (1212411232), we get a palindrome (3533553353).

The spelling of 2321142121 in words is "two billion, three hundred twenty-one million, one hundred forty-two thousand, one hundred twenty-one".