2421205103 has 4 divisors (see below), whose sum is σ = 2480258928. Its totient is φ = 2362151280.

The previous prime is 2421205091. The next prime is 2421205109. The reversal of 2421205103 is 3015021242.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2421205103 - 2²⁰ = 2420156527 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2421205109) 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 3 ways as a sum of consecutive naturals, for example, 29526851 + ... + 29526932.

It is an arithmetic number, because the mean of its divisors is an integer number (620064732).

Almost surely, 2^2421205103 is an apocalyptic number.

2421205103 is a deficient number, since it is larger than the sum of its proper divisors (59053825).

2421205103 is an equidigital number, since it uses as much as digits as its factorization.

2421205103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59053824.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 2421205103 is about 49205.7425815321. The cubic root of 2421205103 is about 1342.7975087925.

Adding to 2421205103 its reverse (3015021242), we get a palindrome (5436226345).

The spelling of 2421205103 in words is "two billion, four hundred twenty-one million, two hundred five thousand, one hundred three".