213132322122113 has 4 divisors (see below), whose sum is σ = 213156839825748. Its totient is φ = 213107804418480.

The previous prime is 213132322122079. The next prime is 213132322122163. The reversal of 213132322122113 is 311221223231312.

213132322122113 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 84405893303824 + 128726428818289 = 9187268^2 + 11345767^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-213132322122113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (213132322122163) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12258838778 + ... + 12258856163.

It is an arithmetic number, because the mean of its divisors is an integer number (53289209956437).

Almost surely, 2^{213132322122113} is an apocalyptic number.

It is an amenable number.

213132322122113 is a deficient number, since it is larger than the sum of its proper divisors (24517703635).

213132322122113 is an equidigital number, since it uses as much as digits as its factorization.

213132322122113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24517703634.

The product of its digits is 5184, while the sum is 29.

Adding to 213132322122113 its reverse (311221223231312), we get a palindrome (524353545353425).

The spelling of 213132322122113 in words is "two hundred thirteen trillion, one hundred thirty-two billion, three hundred twenty-two million, one hundred twenty-two thousand, one hundred thirteen".