213420313 has 4 divisors (see below), whose sum is σ = 213881728. Its totient is φ = 212958900.

The previous prime is 213420271. The next prime is 213420323. The reversal of 213420313 is 313024312.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-213420313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (213420323) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 230013 + ... + 230938.

It is an arithmetic number, because the mean of its divisors is an integer number (53470432).

Almost surely, 2^213420313 is an apocalyptic number.

It is an amenable number.

213420313 is a deficient number, since it is larger than the sum of its proper divisors (461415).

213420313 is an equidigital number, since it uses as much as digits as its factorization.

213420313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 461414.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 213420313 is about 14608.9121087095. The cubic root of 213420313 is about 597.6018283177.

Adding to 213420313 its reverse (313024312), we get a palindrome (526444625).

The spelling of 213420313 in words is "two hundred thirteen million, four hundred twenty thousand, three hundred thirteen".