24404244121 has 2 divisors, whose sum is σ = 24404244122. Its totient is φ = 24404244120.

The previous prime is 24404244019. The next prime is 24404244131. The reversal of 24404244121 is 12144240442.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 24336000000 + 68244121 = 156000^2 + 8261^2 .

It is a cyclic number.

It is not a de Polignac number, because 24404244121 - 2⁹ = 24404243609 is a prime.

It is a super-2 number, since 2×24404244121² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 24404244121.

It is not a weakly prime, because it can be changed into another prime (24404244131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12202122060 + 12202122061.

It is an arithmetic number, because the mean of its divisors is an integer number (12202122061).

Almost surely, 2^24404244121 is an apocalyptic number.

It is an amenable number.

24404244121 is a deficient number, since it is larger than the sum of its proper divisors (1).

24404244121 is an equidigital number, since it uses as much as digits as its factorization.

24404244121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8192, while the sum is 28.

Adding to 24404244121 its reverse (12144240442), we get a palindrome (36548484563).

The spelling of 24404244121 in words is "twenty-four billion, four hundred four million, two hundred forty-four thousand, one hundred twenty-one".