20001114191 has 8 divisors (see below), whose sum is σ = 20189165568. Its totient is φ = 19813599000.

The previous prime is 20001114149. The next prime is 20001114229. The reversal of 20001114191 is 19141110002.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20001114191 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 (20001114131) 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, 58895 + ... + 208496.

It is an arithmetic number, because the mean of its divisors is an integer number (2523645696).

Almost surely, 2^20001114191 is an apocalyptic number.

20001114191 is a deficient number, since it is larger than the sum of its proper divisors (188051377).

20001114191 is a wasteful number, since it uses less digits than its factorization.

20001114191 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 268093.

The product of its (nonzero) digits is 72, while the sum is 20.

Adding to 20001114191 its reverse (19141110002), we get a palindrome (39142224193).

The spelling of 20001114191 in words is "twenty billion, one million, one hundred fourteen thousand, one hundred ninety-one".