201020020120111 has 2 divisors, whose sum is σ = 201020020120112. Its totient is φ = 201020020120110.

The previous prime is 201020020120109. The next prime is 201020020120219. The reversal of 201020020120111 is 111021020020102.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 201020020120111 - 2¹ = 201020020120109 is a prime.

It is a super-5 number, since 5×201020020120111⁵ (a number of 73 digits) contains 55555 as substring.

Together with 201020020120109, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 201020020120091 and 201020020120100.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (201020020124111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100510010060055 + 100510010060056.

It is an arithmetic number, because the mean of its divisors is an integer number (100510010060056).

Almost surely, 2^{201020020120111} is an apocalyptic number.

201020020120111 is a deficient number, since it is larger than the sum of its proper divisors (1).

201020020120111 is an equidigital number, since it uses as much as digits as its factorization.

201020020120111 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 201020020120111 its reverse (111021020020102), we get a palindrome (312041040140213).

The spelling of 201020020120111 in words is "two hundred one trillion, twenty billion, twenty million, one hundred twenty thousand, one hundred eleven".