1310041321 has 2 divisors, whose sum is σ = 1310041322. Its totient is φ = 1310041320.

The previous prime is 1310041319. The next prime is 1310041367. The reversal of 1310041321 is 1231400131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1208535696 + 101505625 = 34764^2 + 10075^2 .

It is a cyclic number.

It is not a de Polignac number, because 1310041321 - 2¹ = 1310041319 is a prime.

Together with 1310041319, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 1310041295 and 1310041304.

It is not a weakly prime, because it can be changed into another prime (1310048321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 655020660 + 655020661.

It is an arithmetic number, because the mean of its divisors is an integer number (655020661).

Almost surely, 2^1310041321 is an apocalyptic number.

It is an amenable number.

1310041321 is a deficient number, since it is larger than the sum of its proper divisors (1).

1310041321 is an equidigital number, since it uses as much as digits as its factorization.

1310041321 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 1310041321 is about 36194.4929650907. The cubic root of 1310041321 is about 1094.1956857679.

Adding to 1310041321 its reverse (1231400131), we get a palindrome (2541441452).

The spelling of 1310041321 in words is "one billion, three hundred ten million, forty-one thousand, three hundred twenty-one".