12100031011 has 4 divisors (see below), whose sum is σ = 12490354624. Its totient is φ = 11709707400.

The previous prime is 12100030991. The next prime is 12100031051. The reversal of 12100031011 is 11013000121.

12100031011 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12100031011 - 2⁵ = 12100030979 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12100031051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 195161760 + ... + 195161821.

It is an arithmetic number, because the mean of its divisors is an integer number (3122588656).

Almost surely, 2^12100031011 is an apocalyptic number.

12100031011 is a deficient number, since it is larger than the sum of its proper divisors (390323613).

12100031011 is an equidigital number, since it uses as much as digits as its factorization.

12100031011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 390323612.

The product of its (nonzero) digits is 6, while the sum is 10.

Adding to 12100031011 its reverse (11013000121), we get a palindrome (23113031132).

The spelling of 12100031011 in words is "twelve billion, one hundred million, thirty-one thousand, eleven".