1312403324 has 12 divisors (see below), whose sum is σ = 2312121000. Its totient is φ = 651797328.

The previous prime is 1312403311. The next prime is 1312403329. The reversal of 1312403324 is 4233042131.

It is a self number, because there is not a number n which added to its sum of digits gives 1312403324.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1312403329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1100414 + ... + 1101605.

It is an arithmetic number, because the mean of its divisors is an integer number (192676750).

Almost surely, 2^1312403324 is an apocalyptic number.

It is an amenable number.

1312403324 is a deficient number, since it is larger than the sum of its proper divisors (999717676).

1312403324 is a wasteful number, since it uses less digits than its factorization.

1312403324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2202172 (or 2202170 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 23.

The square root of 1312403324 is about 36227.1075853428. The cubic root of 1312403324 is about 1094.8529021283.

Adding to 1312403324 its reverse (4233042131), we get a palindrome (5545445455).

The spelling of 1312403324 in words is "one billion, three hundred twelve million, four hundred three thousand, three hundred twenty-four".