31441221067 has 2 divisors, whose sum is σ = 31441221068. Its totient is φ = 31441221066.

The previous prime is 31441221059. The next prime is 31441221103. The reversal of 31441221067 is 76012214413.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 31441221067 - 2³ = 31441221059 is a prime.

It is not a weakly prime, because it can be changed into another prime (31441221367) 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, 15720610533 + 15720610534.

It is an arithmetic number, because the mean of its divisors is an integer number (15720610534).

Almost surely, 2^31441221067 is an apocalyptic number.

31441221067 is a deficient number, since it is larger than the sum of its proper divisors (1).

31441221067 is an equidigital number, since it uses as much as digits as its factorization.

31441221067 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8064, while the sum is 31.

The spelling of 31441221067 in words is "thirty-one billion, four hundred forty-one million, two hundred twenty-one thousand, sixty-seven".