31223908806667 has 2 divisors, whose sum is σ = 31223908806668. Its totient is φ = 31223908806666.

The previous prime is 31223908806653. The next prime is 31223908806677. The reversal of 31223908806667 is 76660880932213.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31223908806667 is a prime.

It is not a weakly prime, because it can be changed into another prime (31223908806677) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15611954403333 + 15611954403334.

It is an arithmetic number, because the mean of its divisors is an integer number (15611954403334).

Almost surely, 2^{31223908806667} is an apocalyptic number.

31223908806667 is a deficient number, since it is larger than the sum of its proper divisors (1).

31223908806667 is an equidigital number, since it uses as much as digits as its factorization.

31223908806667 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 31352832, while the sum is 61.

The spelling of 31223908806667 in words is "thirty-one trillion, two hundred twenty-three billion, nine hundred eight million, eight hundred six thousand, six hundred sixty-seven".