1313623120552 has 16 divisors (see below), whose sum is σ = 2463063737940. Its totient is φ = 656806123776.

The previous prime is 1313623120493. The next prime is 1313623120567. The reversal of 1313623120552 is 2550213263131.

It can be written as a sum of positive squares in 2 ways, for example, as 1169698488676 + 143924631876 = 1081526^2 + 379374^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 459718 + ... + 1684810.

Almost surely, 2^{1313623120552} is an apocalyptic number.

It is an amenable number.

1313623120552 is a deficient number, since it is larger than the sum of its proper divisors (1149440617388).

1313623120552 is a wasteful number, since it uses less digits than its factorization.

1313623120552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1359132 (or 1359128 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 34.

Adding to 1313623120552 its reverse (2550213263131), we get a palindrome (3863836383683).

The spelling of 1313623120552 in words is "one trillion, three hundred thirteen billion, six hundred twenty-three million, one hundred twenty thousand, five hundred fifty-two".