120111201011011 has 4 divisors (see below), whose sum is σ = 137269944012592. Its totient is φ = 102952458009432.

The previous prime is 120111201010943. The next prime is 120111201011041. The reversal of 120111201011011 is 110110102111021.

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 120111201011011 - 2⁴¹ = 117912177755459 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 120111201010982 and 120111201011000.

It is not an unprimeable number, because it can be changed into a prime (120111201011041) 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 3 ways as a sum of consecutive naturals, for example, 8579371500780 + ... + 8579371500793.

It is an arithmetic number, because the mean of its divisors is an integer number (34317486003148).

Almost surely, 2^{120111201011011} is an apocalyptic number.

120111201011011 is a deficient number, since it is larger than the sum of its proper divisors (17158743001581).

120111201011011 is an equidigital number, since it uses as much as digits as its factorization.

120111201011011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17158743001580.

The product of its (nonzero) digits is 4, while the sum is 13.

Adding to 120111201011011 its reverse (110110102111021), we get a palindrome (230221303122032).

The spelling of 120111201011011 in words is "one hundred twenty trillion, one hundred eleven billion, two hundred one million, eleven thousand, eleven".