20021103174 has 8 divisors (see below), whose sum is σ = 40042206360. Its totient is φ = 6673701056.

The previous prime is 20021103173. The next prime is 20021103239. The reversal of 20021103174 is 47130112002.

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

20021103174 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 20021103174.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20021103173) 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, 1668425259 + ... + 1668425270.

It is an arithmetic number, because the mean of its divisors is an integer number (5005275795).

Almost surely, 2^20021103174 is an apocalyptic number.

20021103174 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.

20021103174 is a wasteful number, since it uses less digits than its factorization.

20021103174 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3336850534.

The product of its (nonzero) digits is 336, while the sum is 21.

Adding to 20021103174 its reverse (47130112002), we get a palindrome (67151215176).

The spelling of 20021103174 in words is "twenty billion, twenty-one million, one hundred three thousand, one hundred seventy-four".