100111011012 has 72 divisors (see below), whose sum is σ = 270229290240. Its totient is φ = 31180282560.

The previous prime is 100111010977. The next prime is 100111011031. The reversal of 100111011012 is 210110111001.

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 = 100111010985 and 100111011003.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1514278 + ... + 1579005.

Almost surely, 2^100111011012 is an apocalyptic number.

100111011012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

100111011012 is an abundant number, since it is smaller than the sum of its proper divisors (170118279228).

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

100111011012 is a wasteful number, since it uses less digits than its factorization.

100111011012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3093353 (or 3093348 counting only the distinct ones).

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

Adding to 100111011012 its reverse (210110111001), we get a palindrome (310221122013).

The spelling of 100111011012 in words is "one hundred billion, one hundred eleven million, eleven thousand, twelve".