102011101111 has 4 divisors (see below), whose sum is σ = 105301781824. Its totient is φ = 98720420400.

The previous prime is 102011101097. The next prime is 102011101123. The reversal of 102011101111 is 111101110201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 111101110201 = 24677 ⋅4502213.

It is a cyclic number.

It is not a de Polignac number, because 102011101111 - 2¹⁹ = 102010576823 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102011101151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1645340310 + ... + 1645340371.

It is an arithmetic number, because the mean of its divisors is an integer number (26325445456).

Almost surely, 2^102011101111 is an apocalyptic number.

102011101111 is a deficient number, since it is larger than the sum of its proper divisors (3290680713).

102011101111 is an equidigital number, since it uses as much as digits as its factorization.

102011101111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3290680712.

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

Adding to 102011101111 its reverse (111101110201), we get a palindrome (213112211312).

The spelling of 102011101111 in words is "one hundred two billion, eleven million, one hundred one thousand, one hundred eleven".