213144040343 has 8 divisors (see below), whose sum is σ = 235743512928. Its totient is φ = 191430821664.

The previous prime is 213144040313. The next prime is 213144040349. The reversal of 213144040343 is 343040441312.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 213144040343 - 2⁶ = 213144040279 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213144040349) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 221562971 + ... + 221563932.

It is an arithmetic number, because the mean of its divisors is an integer number (29467939116).

Almost surely, 2^213144040343 is an apocalyptic number.

213144040343 is a deficient number, since it is larger than the sum of its proper divisors (22599472585).

213144040343 is a wasteful number, since it uses less digits than its factorization.

213144040343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 443126953.

The product of its (nonzero) digits is 13824, while the sum is 29.

Adding to 213144040343 its reverse (343040441312), we get a palindrome (556184481655).

The spelling of 213144040343 in words is "two hundred thirteen billion, one hundred forty-four million, forty thousand, three hundred forty-three".