331132323213 has 160 divisors (see below), whose sum is σ = 545368412160. Its totient is φ = 199605098880.

The previous prime is 331132323187. The next prime is 331132323241. The reversal of 331132323213 is 312323231133.

331132323213 is a `hidden beast` number, since 3 + 3 + 11 + 323 + 2 + 321 + 3 = 666.

It is not a de Polignac number, because 331132323213 - 2⁶ = 331132323149 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331132323293) by changing a digit.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 579916218 + ... + 579916788.

It is an arithmetic number, because the mean of its divisors is an integer number (3408552576).

Almost surely, 2^331132323213 is an apocalyptic number.

It is an amenable number.

331132323213 is a deficient number, since it is larger than the sum of its proper divisors (214236088947).

331132323213 is a wasteful number, since it uses less digits than its factorization.

331132323213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 869 (or 860 counting only the distinct ones).

The product of its digits is 5832, while the sum is 27.

Adding to 331132323213 its reverse (312323231133), we get a palindrome (643455554346).

The spelling of 331132323213 in words is "three hundred thirty-one billion, one hundred thirty-two million, three hundred twenty-three thousand, two hundred thirteen".