111010010020111 has 2 divisors, whose sum is σ = 111010010020112. Its totient is φ = 111010010020110.

The previous prime is 111010010020109. The next prime is 111010010020153. The reversal of 111010010020111 is 111020010010111.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 111010010020111 - 2¹ = 111010010020109 is a prime.

Together with 111010010020109, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111010010020181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55505005010055 + 55505005010056.

It is an arithmetic number, because the mean of its divisors is an integer number (55505005010056).

Almost surely, 2^{111010010020111} is an apocalyptic number.

111010010020111 is a deficient number, since it is larger than the sum of its proper divisors (1).

111010010020111 is an equidigital number, since it uses as much as digits as its factorization.

111010010020111 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2, while the sum is 10.

Adding to 111010010020111 its reverse (111020010010111), we get a palindrome (222030020030222).

The spelling of 111010010020111 in words is "one hundred eleven trillion, ten billion, ten million, twenty thousand, one hundred eleven".