1345020315563 has 4 divisors (see below), whose sum is σ = 1356923150328. Its totient is φ = 1333117480800.

The previous prime is 1345020315557. The next prime is 1345020315593. The reversal of 1345020315563 is 3655130205431.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1345020315563 - 2¹⁶ = 1345020250027 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1345020315533) 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, 5951417213 + ... + 5951417438.

It is an arithmetic number, because the mean of its divisors is an integer number (339230787582).

Almost surely, 2^{1345020315563} is an apocalyptic number.

1345020315563 is a deficient number, since it is larger than the sum of its proper divisors (11902834765).

1345020315563 is a wasteful number, since it uses less digits than its factorization.

1345020315563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11902834764.

The product of its (nonzero) digits is 162000, while the sum is 38.

The spelling of 1345020315563 in words is "one trillion, three hundred forty-five billion, twenty million, three hundred fifteen thousand, five hundred sixty-three".