213120343 has 8 divisors (see below), whose sum is σ = 214901856. Its totient is φ = 211344000.

The previous prime is 213120307. The next prime is 213120371. The reversal of 213120343 is 343021312.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-213120343 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 213120343.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213120643) 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, 143163 + ... + 144643.

It is an arithmetic number, because the mean of its divisors is an integer number (26862732).

Almost surely, 2^213120343 is an apocalyptic number.

213120343 is a deficient number, since it is larger than the sum of its proper divisors (1781513).

213120343 is a wasteful number, since it uses less digits than its factorization.

213120343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2585.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 213120343 is about 14598.6418203886. The cubic root of 213120343 is about 597.3217133491.

Adding to 213120343 its reverse (343021312), we get a palindrome (556141655).

The spelling of 213120343 in words is "two hundred thirteen million, one hundred twenty thousand, three hundred forty-three".