100120100111 has 4 divisors (see below), whose sum is σ = 100518985224. Its totient is φ = 99721215000.

The previous prime is 100120100099. The next prime is 100120100131. The reversal of 100120100111 is 111001021001.

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: 111001021001 = 13 ⋅8538540077.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-100120100111 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 (100120100131) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 199442180 + ... + 199442681.

It is an arithmetic number, because the mean of its divisors is an integer number (25129746306).

Almost surely, 2^100120100111 is an apocalyptic number.

100120100111 is a deficient number, since it is larger than the sum of its proper divisors (398885113).

100120100111 is an equidigital number, since it uses as much as digits as its factorization.

100120100111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 398885112.

The product of its (nonzero) digits is 2, while the sum is 8.

Adding to 100120100111 its reverse (111001021001), we get a palindrome (211121121112).

The spelling of 100120100111 in words is "one hundred billion, one hundred twenty million, one hundred thousand, one hundred eleven".