12993016571 has 4 divisors (see below), whose sum is σ = 12993346944. Its totient is φ = 12992686200.

The previous prime is 12993016523. The next prime is 12993016573. The reversal of 12993016571 is 17561039921.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 17561039921 = 19 ⋅924265259.

It is a cyclic number.

It is not a de Polignac number, because 12993016571 - 2¹⁰ = 12993015547 is a prime.

It is a super-2 number, since 2×12993016571² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12993016573) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 96740 + ... + 188001.

It is an arithmetic number, because the mean of its divisors is an integer number (3248336736).

Almost surely, 2^12993016571 is an apocalyptic number.

12993016571 is a deficient number, since it is larger than the sum of its proper divisors (330373).

12993016571 is an equidigital number, since it uses as much as digits as its factorization.

12993016571 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 330372.

The product of its (nonzero) digits is 102060, while the sum is 44.

The spelling of 12993016571 in words is "twelve billion, nine hundred ninety-three million, sixteen thousand, five hundred seventy-one".