120013111011 has 4 divisors (see below), whose sum is σ = 160017481352. Its totient is φ = 80008740672.

The previous prime is 120013110979. The next prime is 120013111019. The reversal of 120013111011 is 110111310021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 110111310021 = 3 ⋅36703770007.

It is not a de Polignac number, because 120013111011 - 2⁵ = 120013110979 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120013111019) 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, 20002185166 + ... + 20002185171.

It is an arithmetic number, because the mean of its divisors is an integer number (40004370338).

Almost surely, 2^120013111011 is an apocalyptic number.

120013111011 is a deficient number, since it is larger than the sum of its proper divisors (40004370341).

120013111011 is an equidigital number, since it uses as much as digits as its factorization.

120013111011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40004370340.

The product of its (nonzero) digits is 6, while the sum is 12.

Adding to 120013111011 its reverse (110111310021), we get a palindrome (230124421032).

The spelling of 120013111011 in words is "one hundred twenty billion, thirteen million, one hundred eleven thousand, eleven".