2601242321 has 4 divisors (see below), whose sum is σ = 2621724672. Its totient is φ = 2580759972.

The previous prime is 2601242317. The next prime is 2601242323. The reversal of 2601242321 is 1232421062.

It is a happy number.

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 2601242321 - 2² = 2601242317 is a prime.

It is a super-2 number, since 2×2601242321² = 13532923225122934082, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2601242323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10240985 + ... + 10241238.

It is an arithmetic number, because the mean of its divisors is an integer number (655431168).

Almost surely, 2^2601242321 is an apocalyptic number.

It is an amenable number.

2601242321 is a deficient number, since it is larger than the sum of its proper divisors (20482351).

2601242321 is a wasteful number, since it uses less digits than its factorization.

2601242321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20482350.

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 2601242321 is about 51002.3756407483. The cubic root of 2601242321 is about 1375.2878420641.

Adding to 2601242321 its reverse (1232421062), we get a palindrome (3833663383).

The spelling of 2601242321 in words is "two billion, six hundred one million, two hundred forty-two thousand, three hundred twenty-one".