213123343321312 has 48 divisors (see below), whose sum is σ = 433129328013312. Its totient is φ = 103122366284160.

The previous prime is 213123343321303. The next prime is 213123343321313.

213123343321312 is nontrivially palindromic in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213123343321313) 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 7 ways as a sum of consecutive naturals, for example, 54805993 + ... + 58565719.

It is an arithmetic number, because the mean of its divisors is an integer number (9023527666944).

Almost surely, 2^{213123343321312} is an apocalyptic number.

It is an amenable number.

213123343321312 is an abundant number, since it is smaller than the sum of its proper divisors (220005984692000).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

213123343321312 is a wasteful number, since it uses less digits than its factorization.

213123343321312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3816911 (or 3816903 counting only the distinct ones).

The product of its digits is 46656, while the sum is 34.

The spelling of 213123343321312 in words is "two hundred thirteen trillion, one hundred twenty-three billion, three hundred forty-three million, three hundred twenty-one thousand, three hundred twelve".