120011200020091 has 4 divisors (see below), whose sum is σ = 127070682374232. Its totient is φ = 112951717665952.

The previous prime is 120011200020077. The next prime is 120011200020119. The reversal of 120011200020091 is 190020002110021.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 120011200020091 - 2¹¹ = 120011200018043 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120011200020011) 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, 3529741177045 + ... + 3529741177078.

It is an arithmetic number, because the mean of its divisors is an integer number (31767670593558).

Almost surely, 2^{120011200020091} is an apocalyptic number.

120011200020091 is a deficient number, since it is larger than the sum of its proper divisors (7059482354141).

120011200020091 is an equidigital number, since it uses as much as digits as its factorization.

120011200020091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7059482354140.

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

The spelling of 120011200020091 in words is "one hundred twenty trillion, eleven billion, two hundred million, twenty thousand, ninety-one".