213113221013 has 16 divisors (see below), whose sum is σ = 265926612480. Its totient is φ = 165920367600.

The previous prime is 213113221001. The next prime is 213113221019. The reversal of 213113221013 is 310122311312.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-213113221013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213113221019) 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, 1091603 + ... + 1271936.

It is an arithmetic number, because the mean of its divisors is an integer number (16620413280).

Almost surely, 2^213113221013 is an apocalyptic number.

It is an amenable number.

213113221013 is a deficient number, since it is larger than the sum of its proper divisors (52813391467).

213113221013 is a wasteful number, since it uses less digits than its factorization.

213113221013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2364728.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 213113221013 its reverse (310122311312), we get a palindrome (523235532325).

The spelling of 213113221013 in words is "two hundred thirteen billion, one hundred thirteen million, two hundred twenty-one thousand, thirteen".