213305421511 has 8 divisors (see below), whose sum is σ = 262529749664. Its totient is φ = 168769124640.

The previous prime is 213305421487. The next prime is 213305421517. The reversal of 213305421511 is 115124503312.

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 213305421511 - 2⁷ = 213305421383 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 213305421511.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213305421517) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1172007720 + ... + 1172007901.

It is an arithmetic number, because the mean of its divisors is an integer number (32816218708).

Almost surely, 2^213305421511 is an apocalyptic number.

213305421511 is a deficient number, since it is larger than the sum of its proper divisors (49224328153).

213305421511 is a wasteful number, since it uses less digits than its factorization.

213305421511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2344015641.

The product of its (nonzero) digits is 3600, while the sum is 28.

Adding to 213305421511 its reverse (115124503312), we get a palindrome (328429924823).

The spelling of 213305421511 in words is "two hundred thirteen billion, three hundred five million, four hundred twenty-one thousand, five hundred eleven".