1235340313 has 4 divisors (see below), whose sum is σ = 1235569588. Its totient is φ = 1235111040.

The previous prime is 1235340307. The next prime is 1235340319. The reversal of 1235340313 is 3130435321.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (1235340307) and next prime (1235340319).

It can be written as a sum of positive squares in 2 ways, for example, as 236021769 + 999318544 = 15363^2 + 31612^2 .

It is a cyclic number.

It is not a de Polignac number, because 1235340313 - 2¹³ = 1235332121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1235340319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 106356 + ... + 117397.

It is an arithmetic number, because the mean of its divisors is an integer number (308892397).

Almost surely, 2^1235340313 is an apocalyptic number.

It is an amenable number.

1235340313 is a deficient number, since it is larger than the sum of its proper divisors (229275).

1235340313 is an equidigital number, since it uses as much as digits as its factorization.

1235340313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229274.

The product of its (nonzero) digits is 3240, while the sum is 25.

The square root of 1235340313 is about 35147.4083397340. The cubic root of 1235340313 is about 1072.9896628609.

Adding to 1235340313 its reverse (3130435321), we get a palindrome (4365775634).

The spelling of 1235340313 in words is "one billion, two hundred thirty-five million, three hundred forty thousand, three hundred thirteen".