1321410313 has 2 divisors, whose sum is σ = 1321410314. Its totient is φ = 1321410312.

The previous prime is 1321410269. The next prime is 1321410401. The reversal of 1321410313 is 3130141231.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1275346944 + 46063369 = 35712^2 + 6787^2 .

It is a cyclic number.

It is not a de Polignac number, because 1321410313 - 2⁹ = 1321409801 is a prime.

It is a super-2 number, since 2×1321410313² = 3492250430605515938, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1321410413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 660705156 + 660705157.

It is an arithmetic number, because the mean of its divisors is an integer number (660705157).

Almost surely, 2^1321410313 is an apocalyptic number.

It is an amenable number.

1321410313 is a deficient number, since it is larger than the sum of its proper divisors (1).

1321410313 is an equidigital number, since it uses as much as digits as its factorization.

1321410313 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 1321410313 is about 36351.2078616378. The cubic root of 1321410313 is about 1097.3518428488.

Adding to 1321410313 its reverse (3130141231), we get a palindrome (4451551544).

The spelling of 1321410313 in words is "one billion, three hundred twenty-one million, four hundred ten thousand, three hundred thirteen".