1313245320 has 64 divisors (see below), whose sum is σ = 3974641920. Its totient is φ = 347096064.

The previous prime is 1313245279. The next prime is 1313245321. The reversal of 1313245320 is 235423131.

It is a super-2 number, since 2×1313245320² = 3449226541003804800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (1313245321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34864 + ... + 61983.

It is an arithmetic number, because the mean of its divisors is an integer number (62103780).

Almost surely, 2^1313245320 is an apocalyptic number.

1313245320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1313245320 is an abundant number, since it is smaller than the sum of its proper divisors (2661396600).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1313245320 is a wasteful number, since it uses less digits than its factorization.

1313245320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96974 (or 96970 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 24.

The square root of 1313245320 is about 36238.7267988267. The cubic root of 1313245320 is about 1095.0869929427.

Adding to 1313245320 its reverse (235423131), we get a palindrome (1548668451).

The spelling of 1313245320 in words is "one billion, three hundred thirteen million, two hundred forty-five thousand, three hundred twenty".