100111101012 has 96 divisors (see below), whose sum is σ = 282077241600. Its totient is φ = 30520768896.

The previous prime is 100111101001. The next prime is 100111101031. The reversal of 100111101012 is 210101111001.

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

It is a junction number, because it is equal to n+sod(n) for n = 100111100985 and 100111101003.

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, 174048 + ... + 480119.

It is an arithmetic number, because the mean of its divisors is an integer number (2938304600).

Almost surely, 2^100111101012 is an apocalyptic number.

100111101012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

100111101012 is an abundant number, since it is smaller than the sum of its proper divisors (181966140588).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

100111101012 is a wasteful number, since it uses less digits than its factorization.

100111101012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 654302 (or 654294 counting only the distinct ones).

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

Adding to 100111101012 its reverse (210101111001), we get a palindrome (310212212013).

The spelling of 100111101012 in words is "one hundred billion, one hundred eleven million, one hundred one thousand, twelve".