2321409121 has 4 divisors (see below), whose sum is σ = 2321986500. Its totient is φ = 2320831744.

The previous prime is 2321409091. The next prime is 2321409127. The reversal of 2321409121 is 1219041232.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 554131600 + 1767277521 = 23540^2 + 42039^2 .

It is a cyclic number.

It is not a de Polignac number, because 2321409121 - 2⁷ = 2321408993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2321409127) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 282616 + ... + 290713.

It is an arithmetic number, because the mean of its divisors is an integer number (580496625).

Almost surely, 2^2321409121 is an apocalyptic number.

It is an amenable number.

2321409121 is a deficient number, since it is larger than the sum of its proper divisors (577379).

2321409121 is an equidigital number, since it uses as much as digits as its factorization.

2321409121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 577378.

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 2321409121 is about 48181.0037359124. The cubic root of 2321409121 is about 1324.0891560840.

The spelling of 2321409121 in words is "two billion, three hundred twenty-one million, four hundred nine thousand, one hundred twenty-one".