12102031100 has 36 divisors (see below), whose sum is σ = 27108556608. Its totient is φ = 4684656000.

The previous prime is 12102031099. The next prime is 12102031103. The reversal of 12102031100 is 113020121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12102031103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1948841 + ... + 1955040.

Almost surely, 2^12102031100 is an apocalyptic number.

12102031100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12102031100 is an abundant number, since it is smaller than the sum of its proper divisors (15006525508).

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

12102031100 is a wasteful number, since it uses less digits than its factorization.

12102031100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3903926 (or 3903919 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 11.

Adding to 12102031100 its reverse (113020121), we get a palindrome (12215051221).

The spelling of 12102031100 in words is "twelve billion, one hundred two million, thirty-one thousand, one hundred".