2420232121 has 4 divisors (see below), whose sum is σ = 2465896932. Its totient is φ = 2374567312.

The previous prime is 2420232041. The next prime is 2420232127. The reversal of 2420232121 is 1212320242.

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 1134005625 + 1286226496 = 33675^2 + 35864^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2420232121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2420232127) 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, 22832326 + ... + 22832431.

It is an arithmetic number, because the mean of its divisors is an integer number (616474233).

Almost surely, 2^2420232121 is an apocalyptic number.

It is an amenable number.

2420232121 is a deficient number, since it is larger than the sum of its proper divisors (45664811).

2420232121 is an equidigital number, since it uses as much as digits as its factorization.

2420232121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45664810.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 2420232121 is about 49195.8547135833. The cubic root of 2420232121 is about 1342.6176131344.

Adding to 2420232121 its reverse (1212320242), we get a palindrome (3632552363).

The spelling of 2420232121 in words is "two billion, four hundred twenty million, two hundred thirty-two thousand, one hundred twenty-one".