30686343239 has 2 divisors, whose sum is σ = 30686343240. Its totient is φ = 30686343238.

The previous prime is 30686343211. The next prime is 30686343263. The reversal of 30686343239 is 93234368603.

It is a strong prime.

It is an emirp because it is prime and its reverse (93234368603) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 30686343239 - 2²⁸ = 30417907783 is a prime.

It is a super-2 number, since 2×30686343239² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 30686343193 and 30686343202.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30686343539) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15343171619 + 15343171620.

It is an arithmetic number, because the mean of its divisors is an integer number (15343171620).

Almost surely, 2^30686343239 is an apocalyptic number.

30686343239 is a deficient number, since it is larger than the sum of its proper divisors (1).

30686343239 is an equidigital number, since it uses as much as digits as its factorization.

30686343239 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1679616, while the sum is 47.

The spelling of 30686343239 in words is "thirty billion, six hundred eighty-six million, three hundred forty-three thousand, two hundred thirty-nine".