120312122111 has 8 divisors (see below), whose sum is σ = 120671944080. Its totient is φ = 119952376128.

The previous prime is 120312122081. The next prime is 120312122153. The reversal of 120312122111 is 111221213021.

It is a happy number.

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-120312122111 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 120312122111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120312122911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5565155 + ... + 5586731.

It is an arithmetic number, because the mean of its divisors is an integer number (15083993010).

Almost surely, 2^120312122111 is an apocalyptic number.

120312122111 is a deficient number, since it is larger than the sum of its proper divisors (359821969).

120312122111 is a wasteful number, since it uses less digits than its factorization.

120312122111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37993.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 120312122111 its reverse (111221213021), we get a palindrome (231533335132).

The spelling of 120312122111 in words is "one hundred twenty billion, three hundred twelve million, one hundred twenty-two thousand, one hundred eleven".