101110121111 has 16 divisors (see below), whose sum is σ = 107552253600. Its totient is φ = 94723307520.

The previous prime is 101110121107. The next prime is 101110121207. The reversal of 101110121111 is 111121011101.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 101110121111 - 2² = 101110121107 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 101110121092 and 101110121101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101110121011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11618840 + ... + 11627538.

It is an arithmetic number, because the mean of its divisors is an integer number (6722015850).

Almost surely, 2^101110121111 is an apocalyptic number.

101110121111 is a deficient number, since it is larger than the sum of its proper divisors (6442132489).

101110121111 is a wasteful number, since it uses less digits than its factorization.

101110121111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11794.

The product of its (nonzero) digits is 2, while the sum is 11.

Adding to 101110121111 its reverse (111121011101), we get a palindrome (212231132212).

The spelling of 101110121111 in words is "one hundred one billion, one hundred ten million, one hundred twenty-one thousand, one hundred eleven".