12000031100 has 18 divisors (see below), whose sum is σ = 26040067704. Its totient is φ = 4800012400.

The previous prime is 12000031067. The next prime is 12000031123. The reversal of 12000031100 is 113000021.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 60000056 + ... + 60000255.

It is an arithmetic number, because the mean of its divisors is an integer number (1446670428).

Almost surely, 2^12000031100 is an apocalyptic number.

12000031100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12000031100 is an abundant number, since it is smaller than the sum of its proper divisors (14040036604).

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

12000031100 is a wasteful number, since it uses less digits than its factorization.

12000031100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120000325 (or 120000318 counting only the distinct ones).

The product of its (nonzero) digits is 6, while the sum is 8.

Adding to 12000031100 its reverse (113000021), we get a palindrome (12113031121).

The spelling of 12000031100 in words is "twelve billion, thirty-one thousand, one hundred".