213223334143 has 4 divisors (see below), whose sum is σ = 216144201808. Its totient is φ = 210302466480.

The previous prime is 213223334113. The next prime is 213223334147. The reversal of 213223334143 is 341433322312.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-213223334143 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 (213223334147) 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, 1460433723 + ... + 1460433868.

It is an arithmetic number, because the mean of its divisors is an integer number (54036050452).

Almost surely, 2^213223334143 is an apocalyptic number.

213223334143 is a deficient number, since it is larger than the sum of its proper divisors (2920867665).

213223334143 is an equidigital number, since it uses as much as digits as its factorization.

213223334143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2920867664.

The product of its digits is 31104, while the sum is 31.

Adding to 213223334143 its reverse (341433322312), we get a palindrome (554656656455).

The spelling of 213223334143 in words is "two hundred thirteen billion, two hundred twenty-three million, three hundred thirty-four thousand, one hundred forty-three".