13312843563 has 12 divisors (see below), whose sum is σ = 18733864488. Its totient is φ = 8408111040.

The previous prime is 13312843561. The next prime is 13312843589. The reversal of 13312843563 is 36534821331.

It is not a de Polignac number, because 13312843563 - 2¹ = 13312843561 is a prime.

It is a super-4 number, since 4×13312843563⁴ (a number of 42 digits) contains 4444 as substring.

It is not an unprimeable number, because it can be changed into a prime (13312843561) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6145198 + ... + 6147363.

It is an arithmetic number, because the mean of its divisors is an integer number (1561155374).

Almost surely, 2^13312843563 is an apocalyptic number.

13312843563 is a deficient number, since it is larger than the sum of its proper divisors (5421020925).

13312843563 is a wasteful number, since it uses less digits than its factorization.

13312843563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12292602 (or 12292583 counting only the distinct ones).

The product of its digits is 155520, while the sum is 39.

The spelling of 13312843563 in words is "thirteen billion, three hundred twelve million, eight hundred forty-three thousand, five hundred sixty-three".