120111001111 has 8 divisors (see below), whose sum is σ = 126002800800. Its totient is φ = 114335870880.

The previous prime is 120111001093. The next prime is 120111001139. The reversal of 120111001111 is 111100111021.

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

It is a cyclic number.

It is not a de Polignac number, because 120111001111 - 2⁹ = 120111000599 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 (120111001151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29165256 + ... + 29169373.

It is an arithmetic number, because the mean of its divisors is an integer number (15750350100).

Almost surely, 2^120111001111 is an apocalyptic number.

120111001111 is a deficient number, since it is larger than the sum of its proper divisors (5891799689).

120111001111 is an equidigital number, since it uses as much as digits as its factorization.

120111001111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58334729.

The product of its (nonzero) digits is 2, while the sum is 10.

Adding to 120111001111 its reverse (111100111021), we get a palindrome (231211112132).

The spelling of 120111001111 in words is "one hundred twenty billion, one hundred eleven million, one thousand, one hundred eleven".