213424243223323 has 16 divisors (see below), whose sum is σ = 233563224314880. Its totient is φ = 193408070432800.

The previous prime is 213424243223263. The next prime is 213424243223371. The reversal of 213424243223323 is 323322342424312.

It is a cyclic number.

It is not a de Polignac number, because 213424243223323 - 2²¹ = 213424241126171 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (213424243223423) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 447530838 + ... + 448007476.

It is an arithmetic number, because the mean of its divisors is an integer number (14597701519680).

Almost surely, 2^{213424243223323} is an apocalyptic number.

213424243223323 is a deficient number, since it is larger than the sum of its proper divisors (20138981091557).

213424243223323 is a wasteful number, since it uses less digits than its factorization.

213424243223323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 605378.

The product of its digits is 995328, while the sum is 40.

Adding to 213424243223323 its reverse (323322342424312), we get a palindrome (536746585647635).

The spelling of 213424243223323 in words is "two hundred thirteen trillion, four hundred twenty-four billion, two hundred forty-three million, two hundred twenty-three thousand, three hundred twenty-three".