12100203120 has 80 divisors (see below), whose sum is σ = 37530847872. Its totient is φ = 3224981760.

The previous prime is 12100203109. The next prime is 12100203173. The reversal of 12100203120 is 2130200121.

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 = 12100203096 and 12100203105.

It is a congruent number.

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, 468135 + ... + 493305.

Almost surely, 2^12100203120 is an apocalyptic number.

12100203120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12100203120 is an abundant number, since it is smaller than the sum of its proper divisors (25430644752).

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

12100203120 is a wasteful number, since it uses less digits than its factorization.

12100203120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27190 (or 27184 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 12100203120 its reverse (2130200121), we get a palindrome (14230403241).

The spelling of 12100203120 in words is "twelve billion, one hundred million, two hundred three thousand, one hundred twenty".