201020111012011 has 8 divisors (see below), whose sum is σ = 202186580629104. Its totient is φ = 199853693161440.

The previous prime is 201020111011949. The next prime is 201020111012059. The reversal of 201020111012011 is 110210111020102.

It is a happy number.

201020111012011 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 201020111012011 - 2²⁷ = 201019976794283 is a prime.

It is a super-2 number, since 2×201020111012011² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 201020111011982 and 201020111012000.

It is not an unprimeable number, because it can be changed into a prime (201020111012311) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5139076 + ... + 20699041.

It is an arithmetic number, because the mean of its divisors is an integer number (25273322578638).

Almost surely, 2^{201020111012011} is an apocalyptic number.

201020111012011 is a deficient number, since it is larger than the sum of its proper divisors (1166469617093).

201020111012011 is a wasteful number, since it uses less digits than its factorization.

201020111012011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25883261.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 201020111012011 its reverse (110210111020102), we get a palindrome (311230222032113).

The spelling of 201020111012011 in words is "two hundred one trillion, twenty billion, one hundred eleven million, twelve thousand, eleven".