201012000020111 has 4 divisors (see below), whose sum is σ = 229728000022992. Its totient is φ = 172296000017232.

The previous prime is 201012000020089. The next prime is 201012000020129. The reversal of 201012000020111 is 111020000210102.

It is a semiprime because it is the product of two primes.

It is a de Polignac number, because none of the positive numbers 2^k-201012000020111 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 201012000020092 and 201012000020101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201012000022111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14358000001430 + ... + 14358000001443.

It is an arithmetic number, because the mean of its divisors is an integer number (57432000005748).

Almost surely, 2^{201012000020111} is an apocalyptic number.

201012000020111 is a deficient number, since it is larger than the sum of its proper divisors (28716000002881).

201012000020111 is an equidigital number, since it uses as much as digits as its factorization.

201012000020111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28716000002880.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 201012000020111 its reverse (111020000210102), we get a palindrome (312032000230213).

The spelling of 201012000020111 in words is "two hundred one trillion, twelve billion, twenty thousand, one hundred eleven".