1313430337 has 2 divisors, whose sum is σ = 1313430338. Its totient is φ = 1313430336.

The previous prime is 1313430331. The next prime is 1313430373. The reversal of 1313430337 is 7330343131.

Together with next prime (1313430373) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1312178176 + 1252161 = 36224^2 + 1119^2 .

It is a cyclic number.

It is not a de Polignac number, because 1313430337 - 2¹¹ = 1313428289 is a prime.

It is not a weakly prime, because it can be changed into another prime (1313430331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 656715168 + 656715169.

It is an arithmetic number, because the mean of its divisors is an integer number (656715169).

Almost surely, 2^1313430337 is an apocalyptic number.

It is an amenable number.

1313430337 is a deficient number, since it is larger than the sum of its proper divisors (1).

1313430337 is an equidigital number, since it uses as much as digits as its factorization.

1313430337 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6804, while the sum is 28.

The square root of 1313430337 is about 36241.2794614097. The cubic root of 1313430337 is about 1095.1384177584.

Adding to 1313430337 its reverse (7330343131), we get a palindrome (8643773468).

The spelling of 1313430337 in words is "one billion, three hundred thirteen million, four hundred thirty thousand, three hundred thirty-seven".