13182802721 has 4 divisors (see below), whose sum is σ = 14381239344. Its totient is φ = 11984366100.

The previous prime is 13182802709. The next prime is 13182802739. The reversal of 13182802721 is 12720828131.

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 13182802721 - 2¹⁸ = 13182540577 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13182802771) 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, 599218295 + ... + 599218316.

It is an arithmetic number, because the mean of its divisors is an integer number (3595309836).

Almost surely, 2^13182802721 is an apocalyptic number.

13182802721 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

13182802721 is a deficient number, since it is larger than the sum of its proper divisors (1198436623).

13182802721 is a wasteful number, since it uses less digits than its factorization.

13182802721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1198436622.

The product of its (nonzero) digits is 10752, while the sum is 35.

The spelling of 13182802721 in words is "thirteen billion, one hundred eighty-two million, eight hundred two thousand, seven hundred twenty-one".