2421205351 has 8 divisors (see below), whose sum is σ = 2492052800. Its totient is φ = 2351363040.

The previous prime is 2421205333. The next prime is 2421205363. The reversal of 2421205351 is 1535021242.

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

It is a cyclic number.

It is not a de Polignac number, because 2421205351 - 2⁹ = 2421204839 is a prime.

It is a super-2 number, since 2×2421205351² = 11724470703422066402, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2421205301) 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, 246396 + ... + 256033.

It is an arithmetic number, because the mean of its divisors is an integer number (311506600).

Almost surely, 2^2421205351 is an apocalyptic number.

2421205351 is a deficient number, since it is larger than the sum of its proper divisors (70847449).

2421205351 is an equidigital number, since it uses as much as digits as its factorization.

2421205351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 502569.

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 2421205351 is about 49205.7451015631. The cubic root of 2421205351 is about 1342.7975546394.

Adding to 2421205351 its reverse (1535021242), we get a palindrome (3956226593).

The spelling of 2421205351 in words is "two billion, four hundred twenty-one million, two hundred five thousand, three hundred fifty-one".