213133101234113 has 4 divisors (see below), whose sum is σ = 216627086500308. Its totient is φ = 209639115967920.

The previous prime is 213133101234091. The next prime is 213133101234149. The reversal of 213133101234113 is 311432101331312.

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 109178111061889 + 103954990172224 = 10448833^2 + 10195832^2 .

It is a cyclic number.

It is not a de Polignac number, because 213133101234113 - 2²² = 213133097039809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (213133101234013) 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, 1746992633006 + ... + 1746992633127.

It is an arithmetic number, because the mean of its divisors is an integer number (54156771625077).

Almost surely, 2^{213133101234113} is an apocalyptic number.

It is an amenable number.

213133101234113 is a deficient number, since it is larger than the sum of its proper divisors (3493985266195).

213133101234113 is an equidigital number, since it uses as much as digits as its factorization.

213133101234113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3493985266194.

The product of its (nonzero) digits is 3888, while the sum is 29.

Adding to 213133101234113 its reverse (311432101331312), we get a palindrome (524565202565425).

The spelling of 213133101234113 in words is "two hundred thirteen trillion, one hundred thirty-three billion, one hundred one million, two hundred thirty-four thousand, one hundred thirteen".