12031896109 has 2 divisors, whose sum is σ = 12031896110. Its totient is φ = 12031896108.

The previous prime is 12031896073. The next prime is 12031896119. The reversal of 12031896109 is 90169813021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12031896100 + 9 = 109690^2 + 3^2 .

It is a cyclic number.

It is not a de Polignac number, because 12031896109 - 2¹⁵ = 12031863341 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12031896119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6015948054 + 6015948055.

It is an arithmetic number, because the mean of its divisors is an integer number (6015948055).

Almost surely, 2^12031896109 is an apocalyptic number.

It is an amenable number.

12031896109 is a deficient number, since it is larger than the sum of its proper divisors (1).

12031896109 is an equidigital number, since it uses as much as digits as its factorization.

12031896109 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23328, while the sum is 40.

The spelling of 12031896109 in words is "twelve billion, thirty-one million, eight hundred ninety-six thousand, one hundred nine".