101100111011111 has 16 divisors (see below), whose sum is σ = 106768409180160. Its totient is φ = 95466565954080.

The previous prime is 101100111011101. The next prime is 101100111011143. The reversal of 101100111011111 is 111110111001101.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-101100111011111 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 101100111011092 and 101100111011101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101100111011101) 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, 127991105 + ... + 128778581.

It is an arithmetic number, because the mean of its divisors is an integer number (6673025573760).

Almost surely, 2^{101100111011111} is an apocalyptic number.

101100111011111 is a deficient number, since it is larger than the sum of its proper divisors (5668298169049).

101100111011111 is a wasteful number, since it uses less digits than its factorization.

101100111011111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 809534.

The product of its (nonzero) digits is 1, while the sum is 11.

Adding to 101100111011111 its reverse (111110111001101), we get a palindrome (212210222012212).

The spelling of 101100111011111 in words is "one hundred one trillion, one hundred billion, one hundred eleven million, eleven thousand, one hundred eleven".