31906327043 has 2 divisors, whose sum is σ = 31906327044. Its totient is φ = 31906327042.

The previous prime is 31906327009. The next prime is 31906327051. The reversal of 31906327043 is 34072360913.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 31906327043 - 2⁶ = 31906326979 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 31906326988 and 31906327006.

It is not a weakly prime, because it can be changed into another prime (31906327093) 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, 15953163521 + 15953163522.

It is an arithmetic number, because the mean of its divisors is an integer number (15953163522).

Almost surely, 2^31906327043 is an apocalyptic number.

31906327043 is a deficient number, since it is larger than the sum of its proper divisors (1).

31906327043 is an equidigital number, since it uses as much as digits as its factorization.

31906327043 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 81648, while the sum is 38.

Adding to 31906327043 its reverse (34072360913), we get a palindrome (65978687956).

The spelling of 31906327043 in words is "thirty-one billion, nine hundred six million, three hundred twenty-seven thousand, forty-three".