213403435405 has 16 divisors (see below), whose sum is σ = 268694584704. Its totient is φ = 162397794240.

The previous prime is 213403435393. The next prime is 213403435433. The reversal of 213403435405 is 504534304312.

It is a happy number.

213403435405 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 213403435405 - 2¹⁵ = 213403402637 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5105379 + ... + 5147008.

It is an arithmetic number, because the mean of its divisors is an integer number (16793411544).

Almost surely, 2^213403435405 is an apocalyptic number.

It is an amenable number.

213403435405 is a deficient number, since it is larger than the sum of its proper divisors (55291149299).

213403435405 is a wasteful number, since it uses less digits than its factorization.

213403435405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10252596.

The product of its (nonzero) digits is 86400, while the sum is 34.

Adding to 213403435405 its reverse (504534304312), we get a palindrome (717937739717).

The spelling of 213403435405 in words is "two hundred thirteen billion, four hundred three million, four hundred thirty-five thousand, four hundred five".