31422307067 has 2 divisors, whose sum is σ = 31422307068. Its totient is φ = 31422307066.

The previous prime is 31422307013. The next prime is 31422307093. The reversal of 31422307067 is 76070322413.

It is a strong prime.

It is an emirp because it is prime and its reverse (76070322413) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31422307067 is a prime.

It is a super-2 number, since 2×31422307067² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (31422307667) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15711153533 + 15711153534.

It is an arithmetic number, because the mean of its divisors is an integer number (15711153534).

Almost surely, 2^31422307067 is an apocalyptic number.

31422307067 is a deficient number, since it is larger than the sum of its proper divisors (1).

31422307067 is an equidigital number, since it uses as much as digits as its factorization.

31422307067 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 42336, while the sum is 35.

The spelling of 31422307067 in words is "thirty-one billion, four hundred twenty-two million, three hundred seven thousand, sixty-seven".