210420213 has 8 divisors (see below), whose sum is σ = 284112000. Its totient is φ = 138504288.

The previous prime is 210420211. The next prime is 210420239. The reversal of 210420213 is 312024012.

210420213 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 210420213 - 2¹ = 210420211 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 210420192 and 210420201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210420211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 443688 + ... + 444161.

It is an arithmetic number, because the mean of its divisors is an integer number (35514000).

Almost surely, 2^210420213 is an apocalyptic number.

It is an amenable number.

210420213 is a deficient number, since it is larger than the sum of its proper divisors (73691787).

210420213 is an equidigital number, since it uses as much as digits as its factorization.

210420213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 887931.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 210420213 is about 14505.8682263421. The cubic root of 210420213 is about 594.7883935523.

Adding to 210420213 its reverse (312024012), we get a palindrome (522444225).

The spelling of 210420213 in words is "two hundred ten million, four hundred twenty thousand, two hundred thirteen".