1311302039 has 2 divisors, whose sum is σ = 1311302040. Its totient is φ = 1311302038.

The previous prime is 1311302029. The next prime is 1311302087. The reversal of 1311302039 is 9302031131.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1311302039 - 2²⁰ = 1310253463 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1311302029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 655651019 + 655651020.

It is an arithmetic number, because the mean of its divisors is an integer number (655651020).

Almost surely, 2^1311302039 is an apocalyptic number.

1311302039 is a deficient number, since it is larger than the sum of its proper divisors (1).

1311302039 is an equidigital number, since it uses as much as digits as its factorization.

1311302039 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 486, while the sum is 23.

The square root of 1311302039 is about 36211.9046585512. The cubic root of 1311302039 is about 1094.5465728988.

The spelling of 1311302039 in words is "one billion, three hundred eleven million, three hundred two thousand, thirty-nine".