120100120011 has 24 divisors (see below), whose sum is σ = 180148761520. Its totient is φ = 79957396512.

The previous prime is 120100120003. The next prime is 120100120013. The reversal of 120100120011 is 110021001021.

It is a happy number.

It is not a de Polignac number, because 120100120011 - 2³ = 120100120003 is a prime.

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

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 120100119975 and 120100120002.

It is not an unprimeable number, because it can be changed into a prime (120100120013) 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, 159016 + ... + 515253.

Almost surely, 2^120100120011 is an apocalyptic number.

120100120011 is a deficient number, since it is larger than the sum of its proper divisors (60048641509).

120100120011 is an frugal number, since it uses more digits than its factorization.

120100120011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 675017 (or 675005 counting only the distinct ones).

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

Adding to 120100120011 its reverse (110021001021), we get a palindrome (230121121032).

The spelling of 120100120011 in words is "one hundred twenty billion, one hundred million, one hundred twenty thousand, eleven".