100120111101 has 8 divisors (see below), whose sum is σ = 148326090560. Its totient is φ = 66746740716.

The previous prime is 100120111019. The next prime is 100120111103. The reversal of 100120111101 is 101111021001.

It is not a de Polignac number, because 100120111101 - 2⁷ = 100120110973 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100120111103) 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, 1854076105 + ... + 1854076158.

It is an arithmetic number, because the mean of its divisors is an integer number (18540761320).

Almost surely, 2^100120111101 is an apocalyptic number.

It is an amenable number.

100120111101 is a deficient number, since it is larger than the sum of its proper divisors (48205979459).

100120111101 is an equidigital number, since it uses as much as digits as its factorization.

100120111101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3708152272 (or 3708152266 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 9.

Adding to 100120111101 its reverse (101111021001), we get a palindrome (201231132102).

The spelling of 100120111101 in words is "one hundred billion, one hundred twenty million, one hundred eleven thousand, one hundred one".