101112011111 has 4 divisors (see below), whose sum is σ = 101378797800. Its totient is φ = 100845224424.

The previous prime is 101112011081. The next prime is 101112011113. The reversal of 101112011111 is 111110211101.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 111110211101 = 6977 ⋅15925213.

It is a cyclic number.

It is not a de Polignac number, because 101112011111 - 2⁶ = 101112011047 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 101112011092 and 101112011101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101112011113) 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, 133392776 + ... + 133393533.

It is an arithmetic number, because the mean of its divisors is an integer number (25344699450).

Almost surely, 2^101112011111 is an apocalyptic number.

101112011111 is a deficient number, since it is larger than the sum of its proper divisors (266786689).

101112011111 is an equidigital number, since it uses as much as digits as its factorization.

101112011111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 266786688.

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

Adding to 101112011111 its reverse (111110211101), we get a palindrome (212222222212).

The spelling of 101112011111 in words is "one hundred one billion, one hundred twelve million, eleven thousand, one hundred eleven".