30311213117 has 2 divisors, whose sum is σ = 30311213118. Its totient is φ = 30311213116.

The previous prime is 30311213099. The next prime is 30311213131. The reversal of 30311213117 is 71131211303.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21701414596 + 8609798521 = 147314^2 + 92789^2 .

It is a cyclic number.

It is not a de Polignac number, because 30311213117 - 2¹⁴ = 30311196733 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 30311213092 and 30311213101.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30311213017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15155606558 + 15155606559.

It is an arithmetic number, because the mean of its divisors is an integer number (15155606559).

Almost surely, 2^30311213117 is an apocalyptic number.

It is an amenable number.

30311213117 is a deficient number, since it is larger than the sum of its proper divisors (1).

30311213117 is an equidigital number, since it uses as much as digits as its factorization.

30311213117 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 378, while the sum is 23.

The spelling of 30311213117 in words is "thirty billion, three hundred eleven million, two hundred thirteen thousand, one hundred seventeen".