213231202113 has 16 divisors (see below), whose sum is σ = 314120647296. Its totient is φ = 127975077120.

The previous prime is 213231202081. The next prime is 213231202127. The reversal of 213231202113 is 311202132312.

213231202113 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 213231202113 - 2⁵ = 213231202081 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 213231202113.

It is not an unprimeable number, because it can be changed into a prime (213231202193) 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 15 ways as a sum of consecutive naturals, for example, 90890218 + ... + 90892563.

It is an arithmetic number, because the mean of its divisors is an integer number (19632540456).

Almost surely, 2^213231202113 is an apocalyptic number.

213231202113 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

213231202113 is a deficient number, since it is larger than the sum of its proper divisors (100889445183).

213231202113 is a wasteful number, since it uses less digits than its factorization.

213231202113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181782824.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 213231202113 its reverse (311202132312), we get a palindrome (524433334425).

The spelling of 213231202113 in words is "two hundred thirteen billion, two hundred thirty-one million, two hundred two thousand, one hundred thirteen".