1310335261 has 2 divisors, whose sum is σ = 1310335262. Its totient is φ = 1310335260.

The previous prime is 1310335253. The next prime is 1310335291. The reversal of 1310335261 is 1625330131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1070271225 + 240064036 = 32715^2 + 15494^2 .

It is an emirp because it is prime and its reverse (1625330131) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1310335261 - 2³ = 1310335253 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1310335291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 655167630 + 655167631.

It is an arithmetic number, because the mean of its divisors is an integer number (655167631).

Almost surely, 2^1310335261 is an apocalyptic number.

It is an amenable number.

1310335261 is a deficient number, since it is larger than the sum of its proper divisors (1).

1310335261 is an equidigital number, since it uses as much as digits as its factorization.

1310335261 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1620, while the sum is 25.

The square root of 1310335261 is about 36198.5532998213. The cubic root of 1310335261 is about 1094.2775162218.

Adding to 1310335261 its reverse (1625330131), we get a palindrome (2935665392).

The spelling of 1310335261 in words is "one billion, three hundred ten million, three hundred thirty-five thousand, two hundred sixty-one".