201011110111009 has 4 divisors (see below), whose sum is σ = 219284847393840. Its totient is φ = 182737372828180.

The previous prime is 201011110110973. The next prime is 201011110111027. The reversal of 201011110111009 is 900111011110102.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 201011110111009 - 2²⁹ = 201010573240097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201011110111079) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9136868641399 + ... + 9136868641420.

It is an arithmetic number, because the mean of its divisors is an integer number (54821211848460).

Almost surely, 2^{201011110111009} is an apocalyptic number.

It is an amenable number.

201011110111009 is a deficient number, since it is larger than the sum of its proper divisors (18273737282831).

201011110111009 is a wasteful number, since it uses less digits than its factorization.

201011110111009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18273737282830.

The product of its (nonzero) digits is 18, while the sum is 19.

The spelling of 201011110111009 in words is "two hundred one trillion, eleven billion, one hundred ten million, one hundred eleven thousand, nine".