213410421 has 12 divisors (see below), whose sum is σ = 352296672. Its totient is φ = 121948776.

The previous prime is 213410389. The next prime is 213410429. The reversal of 213410421 is 124014312.

213410421 is a `hidden beast` number, since 213 + 410 + 42 + 1 = 666.

213410421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 213410421 - 2⁵ = 213410389 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 213410394 and 213410403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213410429) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1693671 + ... + 1693796.

It is an arithmetic number, because the mean of its divisors is an integer number (29358056).

Almost surely, 2^213410421 is an apocalyptic number.

213410421 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

213410421 is a deficient number, since it is larger than the sum of its proper divisors (138886251).

213410421 is a wasteful number, since it uses less digits than its factorization.

213410421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3387480 (or 3387477 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 213410421 is about 14608.5735443266. The cubic root of 213410421 is about 597.5925952562.

Adding to 213410421 its reverse (124014312), we get a palindrome (337424733).

The spelling of 213410421 in words is "two hundred thirteen million, four hundred ten thousand, four hundred twenty-one".