201120020111 has 2 divisors, whose sum is σ = 201120020112. Its totient is φ = 201120020110.

The previous prime is 201120020083. The next prime is 201120020173. The reversal of 201120020111 is 111020021102.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 201120020111 - 2³⁰ = 200046278287 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 201120020092 and 201120020101.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (201150020111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100560010055 + 100560010056.

It is an arithmetic number, because the mean of its divisors is an integer number (100560010056).

Almost surely, 2^201120020111 is an apocalyptic number.

201120020111 is a deficient number, since it is larger than the sum of its proper divisors (1).

201120020111 is an equidigital number, since it uses as much as digits as its factorization.

201120020111 is an evil number, because the sum of its binary digits is even.

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

Adding to 201120020111 its reverse (111020021102), we get a palindrome (312140041213).

Subtracting from 201120020111 its reverse (111020021102), we obtain a palindrome (90099999009).

The spelling of 201120020111 in words is "two hundred one billion, one hundred twenty million, twenty thousand, one hundred eleven".