12031320319 has 2 divisors, whose sum is σ = 12031320320. Its totient is φ = 12031320318.

The previous prime is 12031320251. The next prime is 12031320337. The reversal of 12031320319 is 91302313021.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12031320319 - 2¹⁹ = 12030796031 is a prime.

It is a super-2 number, since 2×12031320319² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12031320293 and 12031320302.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12031320349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6015660159 + 6015660160.

It is an arithmetic number, because the mean of its divisors is an integer number (6015660160).

Almost surely, 2^12031320319 is an apocalyptic number.

12031320319 is a deficient number, since it is larger than the sum of its proper divisors (1).

12031320319 is an equidigital number, since it uses as much as digits as its factorization.

12031320319 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 972, while the sum is 25.

The spelling of 12031320319 in words is "twelve billion, thirty-one million, three hundred twenty thousand, three hundred nineteen".