213311255 has 8 divisors (see below), whose sum is σ = 260312400. Its totient is φ = 167756416.

The previous prime is 213311221. The next prime is 213311311. The reversal of 213311255 is 552113312.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 213311255 - 2¹⁰ = 213310231 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 213311255.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 361250 + ... + 361839.

It is an arithmetic number, because the mean of its divisors is an integer number (32539050).

Almost surely, 2^213311255 is an apocalyptic number.

213311255 is a deficient number, since it is larger than the sum of its proper divisors (47001145).

213311255 is an equidigital number, since it uses as much as digits as its factorization.

213311255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 723153.

The product of its digits is 900, while the sum is 23.

The square root of 213311255 is about 14605.1790471736. The cubic root of 213311255 is about 597.5000192574.

Adding to 213311255 its reverse (552113312), we get a palindrome (765424567).

The spelling of 213311255 in words is "two hundred thirteen million, three hundred eleven thousand, two hundred fifty-five".