120111120011 has 4 divisors (see below), whose sum is σ = 124252882800. Its totient is φ = 115969357224.

The previous prime is 120111119971. The next prime is 120111120047. The reversal of 120111120011 is 110021111021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 110021111021 = 3373 ⋅32618177.

It is a cyclic number.

It is not a de Polignac number, because 120111120011 - 2²² = 120106925707 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 120111119974 and 120111120001.

It is not an unprimeable number, because it can be changed into a prime (120111120211) 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, 2070881351 + ... + 2070881408.

It is an arithmetic number, because the mean of its divisors is an integer number (31063220700).

Almost surely, 2^120111120011 is an apocalyptic number.

120111120011 is a deficient number, since it is larger than the sum of its proper divisors (4141762789).

120111120011 is an equidigital number, since it uses as much as digits as its factorization.

120111120011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4141762788.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 120111120011 its reverse (110021111021), we get a palindrome (230132231032).

The spelling of 120111120011 in words is "one hundred twenty billion, one hundred eleven million, one hundred twenty thousand, eleven".