213113323 has 4 divisors (see below), whose sum is σ = 215811040. Its totient is φ = 210415608.

The previous prime is 213113317. The next prime is 213113339. The reversal of 213113323 is 323311312.

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

It is a cyclic number.

It is not a de Polignac number, because 213113323 - 2¹³ = 213105131 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 213113323.

It is not an unprimeable number, because it can be changed into a prime (213113393) 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, 1348740 + ... + 1348897.

It is an arithmetic number, because the mean of its divisors is an integer number (53952760).

Almost surely, 2^213113323 is an apocalyptic number.

213113323 is a deficient number, since it is larger than the sum of its proper divisors (2697717).

213113323 is an equidigital number, since it uses as much as digits as its factorization.

213113323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2697716.

The product of its digits is 324, while the sum is 19.

The square root of 213113323 is about 14598.4013850832. The cubic root of 213113323 is about 597.3151548567.

Adding to 213113323 its reverse (323311312), we get a palindrome (536424635).

The spelling of 213113323 in words is "two hundred thirteen million, one hundred thirteen thousand, three hundred twenty-three".