213111230310023 has 4 divisors (see below), whose sum is σ = 225647185034160. Its totient is φ = 200575275585888.

The previous prime is 213111230310001. The next prime is 213111230310029. The reversal of 213111230310023 is 320013032111312.

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 213111230310023 - 2⁶ = 213111230309959 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213111230310029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6267977362043 + ... + 6267977362076.

It is an arithmetic number, because the mean of its divisors is an integer number (56411796258540).

Almost surely, 2^{213111230310023} is an apocalyptic number.

213111230310023 is a deficient number, since it is larger than the sum of its proper divisors (12535954724137).

213111230310023 is a wasteful number, since it uses less digits than its factorization.

213111230310023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12535954724136.

The product of its (nonzero) digits is 648, while the sum is 23.

Adding to 213111230310023 its reverse (320013032111312), we get a palindrome (533124262421335).

The spelling of 213111230310023 in words is "two hundred thirteen trillion, one hundred eleven billion, two hundred thirty million, three hundred ten thousand, twenty-three".