100112111205 has 32 divisors (see below), whose sum is σ = 162673536384. Its totient is φ = 52562754816.

The previous prime is 100112111173. The next prime is 100112111249. The reversal of 100112111205 is 502111211001.

It is not a de Polignac number, because 100112111205 - 2⁵ = 100112111173 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1590187 + ... + 1651943.

It is an arithmetic number, because the mean of its divisors is an integer number (5083548012).

Almost surely, 2^100112111205 is an apocalyptic number.

100112111205 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

100112111205 is a deficient number, since it is larger than the sum of its proper divisors (62561425179).

100112111205 is a wasteful number, since it uses less digits than its factorization.

100112111205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63445.

The product of its (nonzero) digits is 20, while the sum is 15.

Adding to 100112111205 its reverse (502111211001), we get a palindrome (602223322206).

The spelling of 100112111205 in words is "one hundred billion, one hundred twelve million, one hundred eleven thousand, two hundred five".