1321241223 has 16 divisors (see below), whose sum is σ = 1786168800. Its totient is φ = 868623360.

The previous prime is 1321241191. The next prime is 1321241237. The reversal of 1321241223 is 3221421231.

It is not a de Polignac number, because 1321241223 - 2⁵ = 1321241191 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1321241223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1321241023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 97503 + ... + 110223.

It is an arithmetic number, because the mean of its divisors is an integer number (111635550).

Almost surely, 2^1321241223 is an apocalyptic number.

1321241223 is a deficient number, since it is larger than the sum of its proper divisors (464927577).

1321241223 is a wasteful number, since it uses less digits than its factorization.

1321241223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13202.

The product of its digits is 576, while the sum is 21.

The square root of 1321241223 is about 36348.8820048155. The cubic root of 1321241223 is about 1097.3050344915.

Adding to 1321241223 its reverse (3221421231), we get a palindrome (4542662454).

The spelling of 1321241223 in words is "one billion, three hundred twenty-one million, two hundred forty-one thousand, two hundred twenty-three".