1313320642524 has 72 divisors (see below), whose sum is σ = 3621719861760. Its totient is φ = 397960711200.

The previous prime is 1313320642519. The next prime is 1313320642541. The reversal of 1313320642524 is 4252460233131.

1313320642524 is a `hidden beast` number, since 1 + 3 + 1 + 3 + 3 + 2 + 0 + 642 + 5 + 2 + 4 = 666.

It is a super-2 number, since 2×1313320642524² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14503509 + ... + 14593779.

Almost surely, 2^{1313320642524} is an apocalyptic number.

It is an amenable number.

1313320642524 is an abundant number, since it is smaller than the sum of its proper divisors (2308399219236).

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

1313320642524 is a wasteful number, since it uses less digits than its factorization.

1313320642524 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127031 (or 127026 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 36.

Adding to 1313320642524 its reverse (4252460233131), we get a palindrome (5565780875655).

The spelling of 1313320642524 in words is "one trillion, three hundred thirteen billion, three hundred twenty million, six hundred forty-two thousand, five hundred twenty-four".