24140320121 has 4 divisors (see below), whose sum is σ = 24149220852. Its totient is φ = 24131419392.

The previous prime is 24140320117. The next prime is 24140320129. The reversal of 24140320121 is 12102304142.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 12102304142 = 2 ⋅6051152071.

It can be written as a sum of positive squares in 2 ways, for example, as 16651321600 + 7488998521 = 129040^2 + 86539^2 .

It is a cyclic number.

It is not a de Polignac number, because 24140320121 - 2² = 24140320117 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 24140320093 and 24140320102.

It is not an unprimeable number, because it can be changed into a prime (24140320129) 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, 4446296 + ... + 4451721.

It is an arithmetic number, because the mean of its divisors is an integer number (6037305213).

Almost surely, 2^24140320121 is an apocalyptic number.

It is an amenable number.

24140320121 is a deficient number, since it is larger than the sum of its proper divisors (8900731).

24140320121 is an equidigital number, since it uses as much as digits as its factorization.

24140320121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8900730.

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 24140320121 its reverse (12102304142), we get a palindrome (36242624263).

The spelling of 24140320121 in words is "twenty-four billion, one hundred forty million, three hundred twenty thousand, one hundred twenty-one".