1311402329 has 2 divisors, whose sum is σ = 1311402330. Its totient is φ = 1311402328.

The previous prime is 1311402299. The next prime is 1311402353. The reversal of 1311402329 is 9232041131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 688800025 + 622602304 = 26245^2 + 24952^2 .

It is a cyclic number.

It is not a de Polignac number, because 1311402329 - 2²⁴ = 1294625113 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1311402298 and 1311402307.

It is not a weakly prime, because it can be changed into another prime (1311402529) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 655701164 + 655701165.

It is an arithmetic number, because the mean of its divisors is an integer number (655701165).

Almost surely, 2^1311402329 is an apocalyptic number.

It is an amenable number.

1311402329 is a deficient number, since it is larger than the sum of its proper divisors (1).

1311402329 is an equidigital number, since it uses as much as digits as its factorization.

1311402329 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 1311402329 is about 36213.2893976783. The cubic root of 1311402329 is about 1094.5744762788.

The spelling of 1311402329 in words is "one billion, three hundred eleven million, four hundred two thousand, three hundred twenty-nine".