100111213111 has 8 divisors (see below), whose sum is σ = 123213800864. Its totient is φ = 79208871840.

The previous prime is 100111213109. The next prime is 100111213127. The reversal of 100111213111 is 111312111001.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 100111213111 - 2¹ = 100111213109 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a junction number, because it is equal to n+sod(n) for n = 100111213091 and 100111213100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100111213141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 550061520 + ... + 550061701.

It is an arithmetic number, because the mean of its divisors is an integer number (15401725108).

Almost surely, 2^100111213111 is an apocalyptic number.

100111213111 is a deficient number, since it is larger than the sum of its proper divisors (23102587753).

100111213111 is a wasteful number, since it uses less digits than its factorization.

100111213111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1100123241.

The product of its (nonzero) digits is 6, while the sum is 13.

Adding to 100111213111 its reverse (111312111001), we get a palindrome (211423324112).

The spelling of 100111213111 in words is "one hundred billion, one hundred eleven million, two hundred thirteen thousand, one hundred eleven".