12003031100 has 36 divisors (see below), whose sum is σ = 26058530064. Its totient is φ = 4799009280.

The previous prime is 12003031037. The next prime is 12003031147. The reversal of 12003031100 is 113030021.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 200897 + ... + 253703.

Almost surely, 2^12003031100 is an apocalyptic number.

12003031100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12003031100 is an abundant number, since it is smaller than the sum of its proper divisors (14055498964).

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

12003031100 is a wasteful number, since it uses less digits than its factorization.

12003031100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55094 (or 55087 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 11.

Adding to 12003031100 its reverse (113030021), we get a palindrome (12116061121).

The spelling of 12003031100 in words is "twelve billion, three million, thirty-one thousand, one hundred".