12100043331 has 32 divisors (see below), whose sum is σ = 18252767040. Its totient is φ = 8019816480.

The previous prime is 12100043323. The next prime is 12100043339. The reversal of 12100043331 is 13334000121.

It is an interprime number because it is at equal distance from previous prime (12100043323) and next prime (12100043339).

It is not a de Polignac number, because 12100043331 - 2³ = 12100043323 is a prime.

It is a super-2 number, since 2×12100043331² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12100043339) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 362361 + ... + 394341.

It is an arithmetic number, because the mean of its divisors is an integer number (570398970).

Almost surely, 2^12100043331 is an apocalyptic number.

12100043331 is a deficient number, since it is larger than the sum of its proper divisors (6152723709).

12100043331 is an frugal number, since it uses more digits than its factorization.

12100043331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32175 (or 32157 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 12100043331 its reverse (13334000121), we get a palindrome (25434043452).

The spelling of 12100043331 in words is "twelve billion, one hundred million, forty-three thousand, three hundred thirty-one".