1312320134224 has 30 divisors (see below), whose sum is σ = 2794780951130. Its totient is φ = 596509151040.

The previous prime is 1312320134207. The next prime is 1312320134287. The reversal of 1312320134224 is 4224310232131.

It can be written as a sum of positive squares in only one way, i.e., 1157345640000 + 154974494224 = 1075800^2 + 393668^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1312320134192 and 1312320134201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 338923719 + ... + 338927590.

Almost surely, 2^{1312320134224} is an apocalyptic number.

It is an amenable number.

1312320134224 is an abundant number, since it is smaller than the sum of its proper divisors (1482460816906).

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

1312320134224 is a wasteful number, since it uses less digits than its factorization.

1312320134224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 677851339 (or 677851322 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 28.

Adding to 1312320134224 its reverse (4224310232131), we get a palindrome (5536630366355).

The spelling of 1312320134224 in words is "one trillion, three hundred twelve billion, three hundred twenty million, one hundred thirty-four thousand, two hundred twenty-four".