2444133121 has 4 divisors (see below), whose sum is σ = 2473580592. Its totient is φ = 2414685652.

The previous prime is 2444133089. The next prime is 2444133127. The reversal of 2444133121 is 1213314442.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2444133121 - 2⁵ = 2444133089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2444133127) 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, 14723611 + ... + 14723776.

It is an arithmetic number, because the mean of its divisors is an integer number (618395148).

Almost surely, 2^2444133121 is an apocalyptic number.

It is an amenable number.

2444133121 is a deficient number, since it is larger than the sum of its proper divisors (29447471).

2444133121 is an equidigital number, since it uses as much as digits as its factorization.

2444133121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29447470.

The product of its digits is 2304, while the sum is 25.

The square root of 2444133121 is about 49438.1747337015. The cubic root of 2444133121 is about 1347.0228165932.

Adding to 2444133121 its reverse (1213314442), we get a palindrome (3657447563).

The spelling of 2444133121 in words is "two billion, four hundred forty-four million, one hundred thirty-three thousand, one hundred twenty-one".