100120111102191 has 8 divisors (see below), whose sum is σ = 133496577717424. Its totient is φ = 66745192610880.

The previous prime is 100120111102183. The next prime is 100120111102267. The reversal of 100120111102191 is 191201111021001.

It is a happy number.

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

It is not a de Polignac number, because 100120111102191 - 2³ = 100120111102183 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 (100120111102171) 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, 386880070 + ... + 387138771.

It is an arithmetic number, because the mean of its divisors is an integer number (16687072214678).

Almost surely, 2^{100120111102191} is an apocalyptic number.

100120111102191 is a deficient number, since it is larger than the sum of its proper divisors (33376466615233).

100120111102191 is an equidigital number, since it uses as much as digits as its factorization.

100120111102191 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 774061961.

The product of its (nonzero) digits is 36, while the sum is 21.

Adding to 100120111102191 its reverse (191201111021001), we get a palindrome (291321222123192).

The spelling of 100120111102191 in words is "one hundred trillion, one hundred twenty billion, one hundred eleven million, one hundred two thousand, one hundred ninety-one".