121102030191 has 8 divisors (see below), whose sum is σ = 165833410864. Its totient is φ = 78552668160.

The previous prime is 121102030183. The next prime is 121102030219. The reversal of 121102030191 is 191030201121.

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 121102030191 - 2³ = 121102030183 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 (121102030141) 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, 545504530 + ... + 545504751.

It is an arithmetic number, because the mean of its divisors is an integer number (20729176358).

Almost surely, 2^121102030191 is an apocalyptic number.

121102030191 is a deficient number, since it is larger than the sum of its proper divisors (44731380673).

121102030191 is a wasteful number, since it uses less digits than its factorization.

121102030191 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1091009321.

The product of its (nonzero) digits is 108, while the sum is 21.

The spelling of 121102030191 in words is "one hundred twenty-one billion, one hundred two million, thirty thousand, one hundred ninety-one".