201010111502111 has 2 divisors, whose sum is σ = 201010111502112. Its totient is φ = 201010111502110.

The previous prime is 201010111502069. The next prime is 201010111502141. The reversal of 201010111502111 is 111205111010102.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 201010111502111 - 2¹⁴ = 201010111485727 is a prime.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 201010111502111.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (201010111502141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100505055751055 + 100505055751056.

It is an arithmetic number, because the mean of its divisors is an integer number (100505055751056).

Almost surely, 2^{201010111502111} is an apocalyptic number.

201010111502111 is a deficient number, since it is larger than the sum of its proper divisors (1).

201010111502111 is an equidigital number, since it uses as much as digits as its factorization.

201010111502111 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20, while the sum is 17.

Adding to 201010111502111 its reverse (111205111010102), we get a palindrome (312215222512213).

The spelling of 201010111502111 in words is "two hundred one trillion, ten billion, one hundred eleven million, five hundred two thousand, one hundred eleven".