1321043411 has 8 divisors (see below), whose sum is σ = 1357684944. Its totient is φ = 1284612480.

The previous prime is 1321043401. The next prime is 1321043413. The reversal of 1321043411 is 1143401231.

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-1321043411 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1321043413) 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, 39890 + ... + 65063.

It is an arithmetic number, because the mean of its divisors is an integer number (169710618).

Almost surely, 2^1321043411 is an apocalyptic number.

1321043411 is a deficient number, since it is larger than the sum of its proper divisors (36641533).

1321043411 is a wasteful number, since it uses less digits than its factorization.

1321043411 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105301.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 1321043411 is about 36346.1608839228. The cubic root of 1321043411 is about 1097.2502700944.

Adding to 1321043411 its reverse (1143401231), we get a palindrome (2464444642).

The spelling of 1321043411 in words is "one billion, three hundred twenty-one million, forty-three thousand, four hundred eleven".