12001020010011 has 32 divisors (see below), whose sum is σ = 18072372530240. Its totient is φ = 7868815891200.

The previous prime is 12001020009991. The next prime is 12001020010079. The reversal of 12001020010011 is 11001002010021.

It is a happy number.

12001020010011 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12001020010011 - 2¹³ = 12001020001819 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 = 12001020009975 and 12001020010002.

It is not an unprimeable number, because it can be changed into a prime (12001020080011) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18377481 + ... + 19019301.

It is an arithmetic number, because the mean of its divisors is an integer number (564761641570).

Almost surely, 2^{12001020010011} is an apocalyptic number.

12001020010011 is a deficient number, since it is larger than the sum of its proper divisors (6071352520229).

12001020010011 is a wasteful number, since it uses less digits than its factorization.

12001020010011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 653244 (or 653238 counting only the distinct ones).

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

Adding to 12001020010011 its reverse (11001002010021), we get a palindrome (23002022020032).

The spelling of 12001020010011 in words is "twelve trillion, one billion, twenty million, ten thousand, eleven".