1313342520 has 64 divisors (see below), whose sum is σ = 4502891520. Its totient is φ = 300192384.

The previous prime is 1313342483. The next prime is 1313342521. The reversal of 1313342520 is 252433131.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1313342521) 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, 780912 + ... + 782591.

It is an arithmetic number, because the mean of its divisors is an integer number (70357680).

Almost surely, 2^1313342520 is an apocalyptic number.

1313342520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1313342520 is an abundant number, since it is smaller than the sum of its proper divisors (3189549000).

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

1313342520 is a wasteful number, since it uses less digits than its factorization.

1313342520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1563524 (or 1563520 counting only the distinct ones).

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

The square root of 1313342520 is about 36240.0678807311. The cubic root of 1313342520 is about 1095.1140099384.

Adding to 1313342520 its reverse (252433131), we get a palindrome (1565775651).

The spelling of 1313342520 in words is "one billion, three hundred thirteen million, three hundred forty-two thousand, five hundred twenty".