213132242343123 has 32 divisors (see below), whose sum is σ = 320206806558720. Its totient is φ = 140083361832960.

The previous prime is 213132242343091. The next prime is 213132242343169. The reversal of 213132242343123 is 321343242231312.

It is a happy number.

213132242343123 is a `hidden beast` number, since 2 + 1 + 31 + 32 + 242 + 343 + 12 + 3 = 666.

It is not a de Polignac number, because 213132242343123 - 2⁵ = 213132242343091 is a prime.

It is a super-2 number, since 2×213132242343123² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (213132242143123) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 75167286 + ... + 77951172.

It is an arithmetic number, because the mean of its divisors is an integer number (10006462704960).

Almost surely, 2^{213132242343123} is an apocalyptic number.

213132242343123 is a deficient number, since it is larger than the sum of its proper divisors (107074564215597).

213132242343123 is a wasteful number, since it uses less digits than its factorization.

213132242343123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2823904 (or 2823898 counting only the distinct ones).

The product of its digits is 124416, while the sum is 36.

Adding to 213132242343123 its reverse (321343242231312), we get a palindrome (534475484574435).

The spelling of 213132242343123 in words is "two hundred thirteen trillion, one hundred thirty-two billion, two hundred forty-two million, three hundred forty-three thousand, one hundred twenty-three".