213310023 has 4 divisors (see below), whose sum is σ = 284413368. Its totient is φ = 142206680.

The previous prime is 213310021. The next prime is 213310037. The reversal of 213310023 is 320013312.

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 213310023 - 2¹ = 213310021 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 213309984 and 213310011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213310021) 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, 35551668 + ... + 35551673.

It is an arithmetic number, because the mean of its divisors is an integer number (71103342).

Almost surely, 2^213310023 is an apocalyptic number.

213310023 is a deficient number, since it is larger than the sum of its proper divisors (71103345).

213310023 is an equidigital number, since it uses as much as digits as its factorization.

213310023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71103344.

The product of its (nonzero) digits is 108, while the sum is 15.

The square root of 213310023 is about 14605.1368702933. The cubic root of 213310023 is about 597.4988689486.

Adding to 213310023 its reverse (320013312), we get a palindrome (533323335).

The spelling of 213310023 in words is "two hundred thirteen million, three hundred ten thousand, twenty-three".