213423333203405 has 16 divisors (see below), whose sum is σ = 275828095791360. Its totient is φ = 157593791224128.

The previous prime is 213423333203401. The next prime is 213423333203449. The reversal of 213423333203405 is 504302333324312.

It is a cyclic number.

It is not a de Polignac number, because 213423333203405 - 2² = 213423333203401 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213423333203401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 115028387 + ... + 116869056.

It is an arithmetic number, because the mean of its divisors is an integer number (17239255986960).

Almost surely, 2^{213423333203405} is an apocalyptic number.

It is an amenable number.

213423333203405 is a deficient number, since it is larger than the sum of its proper divisors (62404762587955).

213423333203405 is a wasteful number, since it uses less digits than its factorization.

213423333203405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 231911620.

The product of its (nonzero) digits is 466560, while the sum is 38.

Adding to 213423333203405 its reverse (504302333324312), we get a palindrome (717725666527717).

The spelling of 213423333203405 in words is "two hundred thirteen trillion, four hundred twenty-three billion, three hundred thirty-three million, two hundred three thousand, four hundred five".