4321421313 has 16 divisors (see below), whose sum is σ = 6616531200. Its totient is φ = 2481198480.

The previous prime is 4321421287. The next prime is 4321421329. The reversal of 4321421313 is 3131241234.

It is a happy number.

It is not a de Polignac number, because 4321421313 - 2¹⁰ = 4321420289 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4321421113) 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, 3445483 + ... + 3446736.

It is an arithmetic number, because the mean of its divisors is an integer number (413533200).

Almost surely, 2^4321421313 is an apocalyptic number.

It is an amenable number.

4321421313 is a deficient number, since it is larger than the sum of its proper divisors (2295109887).

4321421313 is a wasteful number, since it uses less digits than its factorization.

4321421313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6892252.

The product of its digits is 1728, while the sum is 24.

The square root of 4321421313 is about 65737.5183057590. The cubic root of 4321421313 is about 1628.8291631984.

Adding to 4321421313 its reverse (3131241234), we get a palindrome (7452662547).

The spelling of 4321421313 in words is "four billion, three hundred twenty-one million, four hundred twenty-one thousand, three hundred thirteen".