231241134213 has 24 divisors (see below), whose sum is σ = 334737628992. Its totient is φ = 153827569728.

The previous prime is 231241134181. The next prime is 231241134239. The reversal of 231241134213 is 312431142132.

231241134213 is a `hidden beast` number, since 2 + 3 + 1 + 2 + 411 + 34 + 213 = 666.

231241134213 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 231241134213 - 2⁵ = 231241134181 is a prime.

It is a super-2 number, since 2×231241134213² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231241134253) 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 23 ways as a sum of consecutive naturals, for example, 8565945 + ... + 8592897.

It is an arithmetic number, because the mean of its divisors is an integer number (13947401208).

Almost surely, 2^231241134213 is an apocalyptic number.

It is an amenable number.

231241134213 is a deficient number, since it is larger than the sum of its proper divisors (103496494779).

231241134213 is a wasteful number, since it uses less digits than its factorization.

231241134213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28985 (or 28982 counting only the distinct ones).

The product of its digits is 3456, while the sum is 27.

Adding to 231241134213 its reverse (312431142132), we get a palindrome (543672276345).

The spelling of 231241134213 in words is "two hundred thirty-one billion, two hundred forty-one million, one hundred thirty-four thousand, two hundred thirteen".