13220173387 has 8 divisors (see below), whose sum is σ = 13282283520. Its totient is φ = 13158120360.

The previous prime is 13220173361. The next prime is 13220173391. The reversal of 13220173387 is 78337102231.

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

It is a cyclic number.

It is not a de Polignac number, because 13220173387 - 2⁷ = 13220173259 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13220173487) 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, 491428 + ... + 517630.

It is an arithmetic number, because the mean of its divisors is an integer number (1660285440).

Almost surely, 2^13220173387 is an apocalyptic number.

13220173387 is a deficient number, since it is larger than the sum of its proper divisors (62110133).

13220173387 is a wasteful number, since it uses less digits than its factorization.

13220173387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28553.

The product of its (nonzero) digits is 42336, while the sum is 37.

The spelling of 13220173387 in words is "thirteen billion, two hundred twenty million, one hundred seventy-three thousand, three hundred eighty-seven".