1361709311 has 2 divisors, whose sum is σ = 1361709312. Its totient is φ = 1361709310.

The previous prime is 1361709289. The next prime is 1361709331. The reversal of 1361709311 is 1139071631.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (1139071631) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1361709311 - 2⁶ = 1361709247 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1361709331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 680854655 + 680854656.

It is an arithmetic number, because the mean of its divisors is an integer number (680854656).

Almost surely, 2^1361709311 is an apocalyptic number.

1361709311 is a deficient number, since it is larger than the sum of its proper divisors (1).

1361709311 is an equidigital number, since it uses as much as digits as its factorization.

1361709311 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3402, while the sum is 32.

The square root of 1361709311 is about 36901.3456529704. The cubic root of 1361709311 is about 1108.3956236321.

The spelling of 1361709311 in words is "one billion, three hundred sixty-one million, seven hundred nine thousand, three hundred eleven".