1321424319 has 8 divisors (see below), whose sum is σ = 1786034992. Its totient is φ = 868881600.

The previous prime is 1321424281. The next prime is 1321424323. The reversal of 1321424319 is 9134241231.

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

It is not a de Polignac number, because 1321424319 - 2¹⁵ = 1321391551 is a prime.

It is a super-2 number, since 2×1321424319² = 3492324461689227522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1321424519) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3016732 + ... + 3017169.

It is an arithmetic number, because the mean of its divisors is an integer number (223254374).

Almost surely, 2^1321424319 is an apocalyptic number.

1321424319 is a deficient number, since it is larger than the sum of its proper divisors (464610673).

1321424319 is an equidigital number, since it uses as much as digits as its factorization.

1321424319 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6033977.

The product of its digits is 5184, while the sum is 30.

The square root of 1321424319 is about 36351.4005094714. The cubic root of 1321424319 is about 1097.3557198821.

The spelling of 1321424319 in words is "one billion, three hundred twenty-one million, four hundred twenty-four thousand, three hundred nineteen".