213235110305 has 24 divisors (see below), whose sum is σ = 297812197800. Its totient is φ = 146143011840.

The previous prime is 213235110247. The next prime is 213235110337. The reversal of 213235110305 is 503011532312.

It can be written as a sum of positive squares in 4 ways, for example, as 56964323584 + 156270786721 = 238672^2 + 395311^2 .

It is not a de Polignac number, because 213235110305 - 2¹⁴ = 213235093921 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 254225 + ... + 700785.

It is an arithmetic number, because the mean of its divisors is an integer number (12408841575).

Almost surely, 2^213235110305 is an apocalyptic number.

It is an amenable number.

213235110305 is a deficient number, since it is larger than the sum of its proper divisors (84577087495).

213235110305 is a wasteful number, since it uses less digits than its factorization.

213235110305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 448529 (or 448522 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 26.

Adding to 213235110305 its reverse (503011532312), we get a palindrome (716246642617).

The spelling of 213235110305 in words is "two hundred thirteen billion, two hundred thirty-five million, one hundred ten thousand, three hundred five".