30312442117 has 2 divisors, whose sum is σ = 30312442118. Its totient is φ = 30312442116.

The previous prime is 30312442051. The next prime is 30312442157. The reversal of 30312442117 is 71124421303.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 25903614916 + 4408827201 = 160946^2 + 66399^2 .

It is a cyclic number.

It is not a de Polignac number, because 30312442117 - 2²³ = 30304053509 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30312442157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15156221058 + 15156221059.

It is an arithmetic number, because the mean of its divisors is an integer number (15156221059).

Almost surely, 2^30312442117 is an apocalyptic number.

It is an amenable number.

30312442117 is a deficient number, since it is larger than the sum of its proper divisors (1).

30312442117 is an equidigital number, since it uses as much as digits as its factorization.

30312442117 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4032, while the sum is 28.

The spelling of 30312442117 in words is "thirty billion, three hundred twelve million, four hundred forty-two thousand, one hundred seventeen".