2321243121 has 32 divisors (see below), whose sum is σ = 3311566848. Its totient is φ = 1441209600.

The previous prime is 2321243083. The next prime is 2321243159. The reversal of 2321243121 is 1213421232.

It is an interprime number because it is at equal distance from previous prime (2321243083) and next prime (2321243159).

It is not a de Polignac number, because 2321243121 - 2¹⁰ = 2321242097 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2321243021) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2949090 + ... + 2949876.

It is an arithmetic number, because the mean of its divisors is an integer number (103486464).

Almost surely, 2^2321243121 is an apocalyptic number.

It is an amenable number.

2321243121 is a deficient number, since it is larger than the sum of its proper divisors (990323727).

2321243121 is a wasteful number, since it uses less digits than its factorization.

2321243121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1341.

The product of its digits is 576, while the sum is 21.

The square root of 2321243121 is about 48179.2810344862. The cubic root of 2321243121 is about 1324.0575942139.

Adding to 2321243121 its reverse (1213421232), we get a palindrome (3534664353).

The spelling of 2321243121 in words is "two billion, three hundred twenty-one million, two hundred forty-three thousand, one hundred twenty-one".