2421303213 has 16 divisors (see below), whose sum is σ = 3693021696. Its totient is φ = 1382320560.

The previous prime is 2421303179. The next prime is 2421303229. The reversal of 2421303213 is 3123031242.

It is not a de Polignac number, because 2421303213 - 2⁹ = 2421302701 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2421303213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2421303253) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29931 + ... + 75752.

It is an arithmetic number, because the mean of its divisors is an integer number (230813856).

Almost surely, 2^2421303213 is an apocalyptic number.

It is an amenable number.

2421303213 is a deficient number, since it is larger than the sum of its proper divisors (1271718483).

2421303213 is a wasteful number, since it uses less digits than its factorization.

2421303213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106784.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 2421303213 is about 49206.7395079170. The cubic root of 2421303213 is about 1342.8156457779.

Adding to 2421303213 its reverse (3123031242), we get a palindrome (5544334455).

The spelling of 2421303213 in words is "two billion, four hundred twenty-one million, three hundred three thousand, two hundred thirteen".