1223213343 has 8 divisors (see below), whose sum is σ = 1779219456. Its totient is φ = 741341400.

The previous prime is 1223213339. The next prime is 1223213351. The reversal of 1223213343 is 3433123221.

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

It is not a de Polignac number, because 1223213343 - 2² = 1223213339 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1223213333) 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, 18533503 + ... + 18533568.

It is an arithmetic number, because the mean of its divisors is an integer number (222402432).

Almost surely, 2^1223213343 is an apocalyptic number.

1223213343 is a deficient number, since it is larger than the sum of its proper divisors (556006113).

1223213343 is a wasteful number, since it uses less digits than its factorization.

1223213343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37067085.

The product of its digits is 2592, while the sum is 24.

The square root of 1223213343 is about 34974.4670152384. The cubic root of 1223213343 is about 1069.4670368159.

Adding to 1223213343 its reverse (3433123221), we get a palindrome (4656336564).

The spelling of 1223213343 in words is "one billion, two hundred twenty-three million, two hundred thirteen thousand, three hundred forty-three".