1312304504 has 16 divisors (see below), whose sum is σ = 2812081200. Its totient is φ = 562416192.

The previous prime is 1312304503. The next prime is 1312304569. The reversal of 1312304504 is 4054032131.

It is a super-2 number, since 2×1312304504² = 3444286222437372032, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1312304504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1312304503) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11716949 + ... + 11717060.

It is an arithmetic number, because the mean of its divisors is an integer number (175755075).

Almost surely, 2^1312304504 is an apocalyptic number.

1312304504 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1312304504 is an abundant number, since it is smaller than the sum of its proper divisors (1499776696).

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

1312304504 is a wasteful number, since it uses less digits than its factorization.

1312304504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23434022 (or 23434018 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 1312304504 is about 36225.7436638642. The cubic root of 1312304504 is about 1094.8254217347.

Adding to 1312304504 its reverse (4054032131), we get a palindrome (5366336635).

The spelling of 1312304504 in words is "one billion, three hundred twelve million, three hundred four thousand, five hundred four".