12031323019 has 2 divisors, whose sum is σ = 12031323020. Its totient is φ = 12031323018.

The previous prime is 12031322993. The next prime is 12031323043. The reversal of 12031323019 is 91032313021.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12031323019 - 2⁹ = 12031322507 is a prime.

It is a super-2 number, since 2×12031323019² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12031322984 and 12031323002.

It is not a weakly prime, because it can be changed into another prime (12031323049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6015661509 + 6015661510.

It is an arithmetic number, because the mean of its divisors is an integer number (6015661510).

Almost surely, 2^12031323019 is an apocalyptic number.

12031323019 is a deficient number, since it is larger than the sum of its proper divisors (1).

12031323019 is an equidigital number, since it uses as much as digits as its factorization.

12031323019 is an evil number, because the sum of its binary digits is even.

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

The spelling of 12031323019 in words is "twelve billion, thirty-one million, three hundred twenty-three thousand, nineteen".