100111101055 has 12 divisors (see below), whose sum is σ = 139746925080. Its totient is φ = 68647611984.

The previous prime is 100111101031. The next prime is 100111101059. The reversal of 100111101055 is 550101111001.

It is not a de Polignac number, because 100111101055 - 2⁷ = 100111100927 is a prime.

It is a super-2 number, since 2×100111101055² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100111101059) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 204308125 + ... + 204308614.

It is an arithmetic number, because the mean of its divisors is an integer number (11645577090).

Almost surely, 2^100111101055 is an apocalyptic number.

100111101055 is a deficient number, since it is larger than the sum of its proper divisors (39635824025).

100111101055 is an equidigital number, since it uses as much as digits as its factorization.

100111101055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 408616758 (or 408616751 counting only the distinct ones).

The product of its (nonzero) digits is 25, while the sum is 16.

Adding to 100111101055 its reverse (550101111001), we get a palindrome (650212212056).

The spelling of 100111101055 in words is "one hundred billion, one hundred eleven million, one hundred one thousand, fifty-five".