213144312434 has 8 divisors (see below), whose sum is σ = 319720519920. Its totient is φ = 106570805796.

The previous prime is 213144312431. The next prime is 213144312439. The reversal of 213144312434 is 434213441312.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 213144312434.

It is not an unprimeable number, because it can be changed into a prime (213144312431) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 464804 + ... + 801455.

It is an arithmetic number, because the mean of its divisors is an integer number (39965064990).

Almost surely, 2^213144312434 is an apocalyptic number.

213144312434 is a deficient number, since it is larger than the sum of its proper divisors (106576207486).

213144312434 is a wasteful number, since it uses less digits than its factorization.

213144312434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1350424.

The product of its digits is 27648, while the sum is 32.

Adding to 213144312434 its reverse (434213441312), we get a palindrome (647357753746).

The spelling of 213144312434 in words is "two hundred thirteen billion, one hundred forty-four million, three hundred twelve thousand, four hundred thirty-four".