1321430241 has 8 divisors (see below), whose sum is σ = 1762518240. Its totient is φ = 880647872.

The previous prime is 1321430177. The next prime is 1321430261. The reversal of 1321430241 is 1420341231.

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

It is a cyclic number.

It is not a de Polignac number, because 1321430241 - 2⁶ = 1321430177 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1321430261) 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, 66120 + ... + 83753.

It is an arithmetic number, because the mean of its divisors is an integer number (220314780).

Almost surely, 2^1321430241 is an apocalyptic number.

It is an amenable number.

1321430241 is a deficient number, since it is larger than the sum of its proper divisors (441087999).

1321430241 is a wasteful number, since it uses less digits than its factorization.

1321430241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152815.

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

The square root of 1321430241 is about 36351.4819642886. The cubic root of 1321430241 is about 1097.3573591565.

Adding to 1321430241 its reverse (1420341231), we get a palindrome (2741771472).

The spelling of 1321430241 in words is "one billion, three hundred twenty-one million, four hundred thirty thousand, two hundred forty-one".