231213332013133 has 16 divisors (see below), whose sum is σ = 236765248560000. Its totient is φ = 225705521321280.

The previous prime is 231213332013119. The next prime is 231213332013143. The reversal of 231213332013133 is 331310233312132.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 231213332013133 - 2²⁹ = 231212795142221 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 231213332013095 and 231213332013104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231213332013143) 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, 489260643 + ... + 489732991.

It is an arithmetic number, because the mean of its divisors is an integer number (14797828035000).

Almost surely, 2^{231213332013133} is an apocalyptic number.

It is an amenable number.

231213332013133 is a deficient number, since it is larger than the sum of its proper divisors (5551916546867).

231213332013133 is a wasteful number, since it uses less digits than its factorization.

231213332013133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 519012.

The product of its (nonzero) digits is 17496, while the sum is 31.

Adding to 231213332013133 its reverse (331310233312132), we get a palindrome (562523565325265).

The spelling of 231213332013133 in words is "two hundred thirty-one trillion, two hundred thirteen billion, three hundred thirty-two million, thirteen thousand, one hundred thirty-three".