20171217102 has 8 divisors (see below), whose sum is σ = 40342434216. Its totient is φ = 6723739032.

The previous prime is 20171217091. The next prime is 20171217127.

20171217102 is nontrivially palindromic in base 10.

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

20171217102 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1680934753 + ... + 1680934764.

It is an arithmetic number, because the mean of its divisors is an integer number (5042804277).

Almost surely, 2^20171217102 is an apocalyptic number.

20171217102 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20171217102 is a wasteful number, since it uses less digits than its factorization.

20171217102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3361869522.

The product of its (nonzero) digits is 392, while the sum is 24.

The spelling of 20171217102 in words is "twenty billion, one hundred seventy-one million, two hundred seventeen thousand, one hundred two".