120101101011 has 24 divisors (see below), whose sum is σ = 180314643600. Its totient is φ = 76964803776.

The previous prime is 120101100989. The next prime is 120101101019. The reversal of 120101101011 is 110101101021.

It is not a de Polignac number, because 120101101011 - 2⁶ = 120101100947 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 120101100984 and 120101101002.

It is not an unprimeable number, because it can be changed into a prime (120101101019) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2145036 + ... + 2200313.

It is an arithmetic number, because the mean of its divisors is an integer number (7513110150).

Almost surely, 2^120101101011 is an apocalyptic number.

120101101011 is a deficient number, since it is larger than the sum of its proper divisors (60213542589).

120101101011 is a wasteful number, since it uses less digits than its factorization.

120101101011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4345475 (or 4345472 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 9.

Adding to 120101101011 its reverse (110101101021), we get a palindrome (230202202032).

The spelling of 120101101011 in words is "one hundred twenty billion, one hundred one million, one hundred one thousand, eleven".