213010421 has 8 divisors (see below), whose sum is σ = 230210400. Its totient is φ = 195926832.

The previous prime is 213010417. The next prime is 213010451. The reversal of 213010421 is 124010312.

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

It is a cyclic number.

It is not a de Polignac number, because 213010421 - 2² = 213010417 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 213010396 and 213010405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213010451) 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, 25271 + ... + 32628.

It is an arithmetic number, because the mean of its divisors is an integer number (28776300).

Almost surely, 2^213010421 is an apocalyptic number.

It is an amenable number.

213010421 is a deficient number, since it is larger than the sum of its proper divisors (17199979).

213010421 is a wasteful number, since it uses less digits than its factorization.

213010421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58195.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 213010421 is about 14594.8765325370. The cubic root of 213010421 is about 597.2190012882.

Adding to 213010421 its reverse (124010312), we get a palindrome (337020733).

The spelling of 213010421 in words is "two hundred thirteen million, ten thousand, four hundred twenty-one".