120020101011 has 6 divisors (see below), whose sum is σ = 173362368140. Its totient is φ = 80013400668.

The previous prime is 120020101007. The next prime is 120020101027. The reversal of 120020101011 is 110101020021.

It is a happy number.

It is not a de Polignac number, because 120020101011 - 2² = 120020101007 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9), and also a Moran number because the ratio is a prime number: 13335566779 = 120020101011 / (1 + 2 + 0 + 0 + 2 + 0 + 1 + 0 + 1 + 0 + 1 + 1).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 120020100984 and 120020101002.

It is not an unprimeable number, because it can be changed into a prime (120020101001) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6667783381 + ... + 6667783398.

Almost surely, 2^120020101011 is an apocalyptic number.

120020101011 is a deficient number, since it is larger than the sum of its proper divisors (53342267129).

120020101011 is a wasteful number, since it uses less digits than its factorization.

120020101011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13335566785 (or 13335566782 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 120020101011 its reverse (110101020021), we get a palindrome (230121121032).

The spelling of 120020101011 in words is "one hundred twenty billion, twenty million, one hundred one thousand, eleven".