213231230131 has 16 divisors (see below), whose sum is σ = 226146159360. Its totient is φ = 200705450400.

The previous prime is 213231230123. The next prime is 213231230141. The reversal of 213231230131 is 131032132312.

213231230131 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 213231230131 - 2³ = 213231230123 is a prime.

It is a super-2 number, since 2×213231230131² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (213231230141) 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, 488706 + ... + 815656.

It is an arithmetic number, because the mean of its divisors is an integer number (14134134960).

Almost surely, 2^213231230131 is an apocalyptic number.

213231230131 is a deficient number, since it is larger than the sum of its proper divisors (12914929229).

213231230131 is a wasteful number, since it uses less digits than its factorization.

213231230131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 327546.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 213231230131 its reverse (131032132312), we get a palindrome (344263362443).

The spelling of 213231230131 in words is "two hundred thirteen billion, two hundred thirty-one million, two hundred thirty thousand, one hundred thirty-one".