1313240330 has 32 divisors (see below), whose sum is σ = 2412823248. Its totient is φ = 514483200.

The previous prime is 1313240261. The next prime is 1313240333. The reversal of 1313240330 is 330423131.

It can be written as a sum of positive squares in 8 ways, for example, as 215179561 + 1098060769 = 14669^2 + 33137^2 .

It is not an unprimeable number, because it can be changed into a prime (1313240333) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 142544 + ... + 151476.

Almost surely, 2^1313240330 is an apocalyptic number.

1313240330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1313240330 is a deficient number, since it is larger than the sum of its proper divisors (1099582918).

1313240330 is a wasteful number, since it uses less digits than its factorization.

1313240330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9242.

The product of its (nonzero) digits is 648, while the sum is 20.

The square root of 1313240330 is about 36238.6579497641. The cubic root of 1313240330 is about 1095.0856059231.

Adding to 1313240330 its reverse (330423131), we get a palindrome (1643663461).

The spelling of 1313240330 in words is "one billion, three hundred thirteen million, two hundred forty thousand, three hundred thirty".