12031071839 has 2 divisors, whose sum is σ = 12031071840. Its totient is φ = 12031071838.

The previous prime is 12031071827. The next prime is 12031071841. The reversal of 12031071839 is 93817013021.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (93817013021) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12031071839 - 2⁸ = 12031071583 is a prime.

Together with 12031071841, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 12031071799 and 12031071808.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12031071739) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6015535919 + 6015535920.

It is an arithmetic number, because the mean of its divisors is an integer number (6015535920).

Almost surely, 2^12031071839 is an apocalyptic number.

12031071839 is a deficient number, since it is larger than the sum of its proper divisors (1).

12031071839 is an equidigital number, since it uses as much as digits as its factorization.

12031071839 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9072, while the sum is 35.

The spelling of 12031071839 in words is "twelve billion, thirty-one million, seventy-one thousand, eight hundred thirty-nine".