12031320382 has 16 divisors (see below), whose sum is σ = 18320205312. Its totient is φ = 5924623320.

The previous prime is 12031320349. The next prime is 12031320383. The reversal of 12031320382 is 28302313021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12031320383) 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 7 ways as a sum of consecutive naturals, for example, 1242853 + ... + 1252495.

It is an arithmetic number, because the mean of its divisors is an integer number (1145012832).

Almost surely, 2^12031320382 is an apocalyptic number.

12031320382 is a deficient number, since it is larger than the sum of its proper divisors (6288884930).

12031320382 is an equidigital number, since it uses as much as digits as its factorization.

12031320382 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19023.

The product of its (nonzero) digits is 1728, while the sum is 25.

The spelling of 12031320382 in words is "twelve billion, thirty-one million, three hundred twenty thousand, three hundred eighty-two".