1310107321 has 2 divisors, whose sum is σ = 1310107322. Its totient is φ = 1310107320.

The previous prime is 1310107319. The next prime is 1310107339. The reversal of 1310107321 is 1237010131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 996286096 + 313821225 = 31564^2 + 17715^2 .

It is a cyclic number.

It is not a de Polignac number, because 1310107321 - 2¹ = 1310107319 is a prime.

Together with 1310107319, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1310107021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 655053660 + 655053661.

It is an arithmetic number, because the mean of its divisors is an integer number (655053661).

Almost surely, 2^1310107321 is an apocalyptic number.

It is an amenable number.

1310107321 is a deficient number, since it is larger than the sum of its proper divisors (1).

1310107321 is an equidigital number, since it uses as much as digits as its factorization.

1310107321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 126, while the sum is 19.

The square root of 1310107321 is about 36195.4046945189. The cubic root of 1310107321 is about 1094.2140606851.

Adding to 1310107321 its reverse (1237010131), we get a palindrome (2547117452).

The spelling of 1310107321 in words is "one billion, three hundred ten million, one hundred seven thousand, three hundred twenty-one".