20010104191 has 8 divisors (see below), whose sum is σ = 24947662464. Its totient is φ = 15592288920.

The previous prime is 20010104183. The next prime is 20010104209. The reversal of 20010104191 is 19140101002.

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 20010104191 - 2³ = 20010104183 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20010104591) 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, 129935665 + ... + 129935818.

It is an arithmetic number, because the mean of its divisors is an integer number (3118457808).

Almost surely, 2^20010104191 is an apocalyptic number.

20010104191 is a deficient number, since it is larger than the sum of its proper divisors (4937558273).

20010104191 is a wasteful number, since it uses less digits than its factorization.

20010104191 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 259871501.

The product of its (nonzero) digits is 72, while the sum is 19.

Adding to 20010104191 its reverse (19140101002), we get a palindrome (39150205193).

The spelling of 20010104191 in words is "twenty billion, ten million, one hundred four thousand, one hundred ninety-one".