31454445307 has 2 divisors, whose sum is σ = 31454445308. Its totient is φ = 31454445306.

The previous prime is 31454445289. The next prime is 31454445371. The reversal of 31454445307 is 70354445413.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31454445307 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 31454445307.

It is not a weakly prime, because it can be changed into another prime (31454445397) 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, 15727222653 + 15727222654.

It is an arithmetic number, because the mean of its divisors is an integer number (15727222654).

Almost surely, 2^31454445307 is an apocalyptic number.

31454445307 is a deficient number, since it is larger than the sum of its proper divisors (1).

31454445307 is an equidigital number, since it uses as much as digits as its factorization.

31454445307 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 403200, while the sum is 40.

The spelling of 31454445307 in words is "thirty-one billion, four hundred fifty-four million, four hundred forty-five thousand, three hundred seven".