100123011120 has 80 divisors (see below), whose sum is σ = 338597828352. Its totient is φ = 24272244480.

The previous prime is 100123011103. The next prime is 100123011133. The reversal of 100123011120 is 21110321001.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 100123011096 and 100123011105.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18960052 + ... + 18965331.

Almost surely, 2^100123011120 is an apocalyptic number.

100123011120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100123011120 is an abundant number, since it is smaller than the sum of its proper divisors (238474817232).

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

100123011120 is a wasteful number, since it uses less digits than its factorization.

100123011120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37925410 (or 37925404 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 12.

Adding to 100123011120 its reverse (21110321001), we get a palindrome (121233332121).

The spelling of 100123011120 in words is "one hundred billion, one hundred twenty-three million, eleven thousand, one hundred twenty".