1313520545453 has 4 divisors (see below), whose sum is σ = 1382653205760. Its totient is φ = 1244387885148.

The previous prime is 1313520545443. The next prime is 1313520545461. The reversal of 1313520545453 is 3545450253131.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1313520545453 - 2¹⁶ = 1313520479917 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1313520545453.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1313520545443) 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, 34566330125 + ... + 34566330162.

It is an arithmetic number, because the mean of its divisors is an integer number (345663301440).

Almost surely, 2^{1313520545453} is an apocalyptic number.

It is an amenable number.

1313520545453 is a deficient number, since it is larger than the sum of its proper divisors (69132660307).

1313520545453 is an equidigital number, since it uses as much as digits as its factorization.

1313520545453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69132660306.

The product of its (nonzero) digits is 540000, while the sum is 41.

Adding to 1313520545453 its reverse (3545450253131), we get a palindrome (4858970798584).

The spelling of 1313520545453 in words is "one trillion, three hundred thirteen billion, five hundred twenty million, five hundred forty-five thousand, four hundred fifty-three".