1321042223 has 8 divisors (see below), whose sum is σ = 1338947280. Its totient is φ = 1303240320.

The previous prime is 1321042213. The next prime is 1321042267. The reversal of 1321042223 is 3222401231.

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-1321042223 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1321042195 and 1321042204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1321042213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 173 + ... + 51401.

It is an arithmetic number, because the mean of its divisors is an integer number (167368410).

Almost surely, 2^1321042223 is an apocalyptic number.

1321042223 is a deficient number, since it is larger than the sum of its proper divisors (17905057).

1321042223 is a wasteful number, since it uses less digits than its factorization.

1321042223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51577.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 1321042223 is about 36346.1445410651. The cubic root of 1321042223 is about 1097.2499411792.

Adding to 1321042223 its reverse (3222401231), we get a palindrome (4543443454).

The spelling of 1321042223 in words is "one billion, three hundred twenty-one million, forty-two thousand, two hundred twenty-three".