213133012113 has 16 divisors (see below), whose sum is σ = 326842743680. Its totient is φ = 121014556416.

The previous prime is 213133012097. The next prime is 213133012151. The reversal of 213133012113 is 311210331312.

It is a happy number.

It is not a de Polignac number, because 213133012113 - 2⁴ = 213133012097 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 213133012113.

It is not an unprimeable number, because it can be changed into a prime (213133012013) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32318968 + ... + 32325561.

It is an arithmetic number, because the mean of its divisors is an integer number (20427671480).

Almost surely, 2^213133012113 is an apocalyptic number.

It is an amenable number.

213133012113 is a deficient number, since it is larger than the sum of its proper divisors (113709731567).

213133012113 is a wasteful number, since it uses less digits than its factorization.

213133012113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64644696.

The product of its (nonzero) digits is 324, while the sum is 21.

Adding to 213133012113 its reverse (311210331312), we get a palindrome (524343343425).

The spelling of 213133012113 in words is "two hundred thirteen billion, one hundred thirty-three million, twelve thousand, one hundred thirteen".