4210323421 has 4 divisors (see below), whose sum is σ = 4211106652. Its totient is φ = 4209540192.

The previous prime is 4210323409. The next prime is 4210323427. The reversal of 4210323421 is 1243230124.

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

It can be written as a sum of positive squares in 2 ways, for example, as 283922500 + 3926400921 = 16850^2 + 62661^2 .

It is a cyclic number.

It is not a de Polignac number, because 4210323421 - 2⁵ = 4210323389 is a prime.

It is a super-2 number, since 2×4210323421² = 35453646618842286482, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4210323392 and 4210323401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4210323427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 383496 + ... + 394321.

It is an arithmetic number, because the mean of its divisors is an integer number (1052776663).

Almost surely, 2^4210323421 is an apocalyptic number.

It is an amenable number.

4210323421 is a deficient number, since it is larger than the sum of its proper divisors (783231).

4210323421 is an equidigital number, since it uses as much as digits as its factorization.

4210323421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 783230.

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 4210323421 is about 64887.0050241187. The cubic root of 4210323421 is about 1614.7494773822.

Adding to 4210323421 its reverse (1243230124), we get a palindrome (5453553545).

The spelling of 4210323421 in words is "four billion, two hundred ten million, three hundred twenty-three thousand, four hundred twenty-one".