120111011101 has 4 divisors (see below), whose sum is σ = 120112024032. Its totient is φ = 120109998172.

The previous prime is 120111011089. The next prime is 120111011107. The reversal of 120111011101 is 101110111021.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 101110111021 = 883 ⋅114507487.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-120111011101 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 (120111011107) 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, 300745 + ... + 575038.

It is an arithmetic number, because the mean of its divisors is an integer number (30028006008).

Almost surely, 2^120111011101 is an apocalyptic number.

It is an amenable number.

120111011101 is a deficient number, since it is larger than the sum of its proper divisors (1012931).

120111011101 is an equidigital number, since it uses as much as digits as its factorization.

120111011101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1012930.

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

Adding to 120111011101 its reverse (101110111021), we get a palindrome (221221122122).

It can be divided in two parts, 1 and 20111011101, that added together give a palindrome (20111011102).

The spelling of 120111011101 in words is "one hundred twenty billion, one hundred eleven million, eleven thousand, one hundred one".