120101011011 has 40 divisors (see below), whose sum is σ = 180024611184. Its totient is φ = 79793588160.

The previous prime is 120101011007. The next prime is 120101011033. The reversal of 120101011011 is 110110101021.

It is not a de Polignac number, because 120101011011 - 2² = 120101011007 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 = 120101010984 and 120101011002.

It is not an unprimeable number, because it can be changed into a prime (120101011061) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 45821281 + ... + 45823901.

Almost surely, 2^120101011011 is an apocalyptic number.

120101011011 is a deficient number, since it is larger than the sum of its proper divisors (59923600173).

120101011011 is a wasteful number, since it uses less digits than its factorization.

120101011011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4353 (or 4344 counting only the distinct ones).

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

Adding to 120101011011 its reverse (110110101021), we get a palindrome (230211112032).

The spelling of 120101011011 in words is "one hundred twenty billion, one hundred one million, eleven thousand, eleven".