213443513115 has 32 divisors (see below), whose sum is σ = 390804395520. Its totient is φ = 97447256064.

The previous prime is 213443513113. The next prime is 213443513161. The reversal of 213443513115 is 511315344312.

213443513115 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 213443513115 - 2¹ = 213443513113 is a prime.

It is not an unprimeable number, because it can be changed into a prime (213443513113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1240969 + ... + 1402458.

It is an arithmetic number, because the mean of its divisors is an integer number (12212637360).

Almost surely, 2^213443513115 is an apocalyptic number.

213443513115 is a deficient number, since it is larger than the sum of its proper divisors (177360882405).

213443513115 is a wasteful number, since it uses less digits than its factorization.

213443513115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2644211.

The product of its digits is 21600, while the sum is 33.

Adding to 213443513115 its reverse (511315344312), we get a palindrome (724758857427).

The spelling of 213443513115 in words is "two hundred thirteen billion, four hundred forty-three million, five hundred thirteen thousand, one hundred fifteen".