120012110191 has 4 divisors (see below), whose sum is σ = 122565559392. Its totient is φ = 117458660992.

The previous prime is 120012110173. The next prime is 120012110203. The reversal of 120012110191 is 191011210021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 191011210021 = 29 ⋅6586593449.

It is a cyclic number.

It is not a de Polignac number, because 120012110191 - 2¹¹ = 120012108143 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 (120012110171) 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, 1276724530 + ... + 1276724623.

It is an arithmetic number, because the mean of its divisors is an integer number (30641389848).

Almost surely, 2^120012110191 is an apocalyptic number.

120012110191 is a deficient number, since it is larger than the sum of its proper divisors (2553449201).

120012110191 is an equidigital number, since it uses as much as digits as its factorization.

120012110191 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2553449200.

The product of its (nonzero) digits is 36, while the sum is 19.

The spelling of 120012110191 in words is "one hundred twenty billion, twelve million, one hundred ten thousand, one hundred ninety-one".