13213311673 has 8 divisors (see below), whose sum is σ = 13670255880. Its totient is φ = 12756455040.

The previous prime is 13213311667. The next prime is 13213311701. The reversal of 13213311673 is 37611331231.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 3717184 + 13209594489 = 1928^2 + 114933^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 13213311673 - 2⁵ = 13213311641 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13213311623) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 481893 + ... + 508573.

It is an arithmetic number, because the mean of its divisors is an integer number (1708781985).

Almost surely, 2^13213311673 is an apocalyptic number.

It is an amenable number.

13213311673 is a deficient number, since it is larger than the sum of its proper divisors (456944207).

13213311673 is a wasteful number, since it uses less digits than its factorization.

13213311673 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43787.

The product of its digits is 6804, while the sum is 31.

The spelling of 13213311673 in words is "thirteen billion, two hundred thirteen million, three hundred eleven thousand, six hundred seventy-three".