2421130521 has 8 divisors (see below), whose sum is σ = 3230128864. Its totient is φ = 1613109600.

The previous prime is 2421130513. The next prime is 2421130541. The reversal of 2421130521 is 1250311242.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2421130521 - 2³ = 2421130513 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2421130541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 238555 + ... + 248496.

It is an arithmetic number, because the mean of its divisors is an integer number (403766108).

Almost surely, 2^2421130521 is an apocalyptic number.

It is an amenable number.

2421130521 is a deficient number, since it is larger than the sum of its proper divisors (808998343).

2421130521 is a wasteful number, since it uses less digits than its factorization.

2421130521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 488711.

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 2421130521 is about 49204.9847169979. The cubic root of 2421130521 is about 1342.7837209544.

Adding to 2421130521 its reverse (1250311242), we get a palindrome (3671441763).

The spelling of 2421130521 in words is "two billion, four hundred twenty-one million, one hundred thirty thousand, five hundred twenty-one".