1310305939 has 2 divisors, whose sum is σ = 1310305940. Its totient is φ = 1310305938.

The previous prime is 1310305897. The next prime is 1310305961. The reversal of 1310305939 is 9395030131.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1310305939 - 2²¹ = 1308208787 is a prime.

It is not a weakly prime, because it can be changed into another prime (1310305999) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 655152969 + 655152970.

It is an arithmetic number, because the mean of its divisors is an integer number (655152970).

Almost surely, 2^1310305939 is an apocalyptic number.

1310305939 is a deficient number, since it is larger than the sum of its proper divisors (1).

1310305939 is an equidigital number, since it uses as much as digits as its factorization.

1310305939 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10935, while the sum is 34.

The square root of 1310305939 is about 36198.1482813693. The cubic root of 1310305939 is about 1094.2693537702.

The spelling of 1310305939 in words is "one billion, three hundred ten million, three hundred five thousand, nine hundred thirty-nine".