12311031043 has 2 divisors, whose sum is σ = 12311031044. Its totient is φ = 12311031042.

The previous prime is 12311030993. The next prime is 12311031067. The reversal of 12311031043 is 34013011321.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12311031043 - 2²⁹ = 11774160131 is a prime.

It is a super-2 number, since 2×12311031043² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12311031043.

It is not a weakly prime, because it can be changed into another prime (12311091043) 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 as a sum of consecutive naturals, namely, 6155515521 + 6155515522.

It is an arithmetic number, because the mean of its divisors is an integer number (6155515522).

Almost surely, 2^12311031043 is an apocalyptic number.

12311031043 is a deficient number, since it is larger than the sum of its proper divisors (1).

12311031043 is an equidigital number, since it uses as much as digits as its factorization.

12311031043 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 12311031043 its reverse (34013011321), we get a palindrome (46324042364).

The spelling of 12311031043 in words is "twelve billion, three hundred eleven million, thirty-one thousand, forty-three".