30123943559 has 2 divisors, whose sum is σ = 30123943560. Its totient is φ = 30123943558.

The previous prime is 30123943511. The next prime is 30123943613. The reversal of 30123943559 is 95534932103.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 30123943559 - 2²⁴ = 30107166343 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30123945559) 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, 15061971779 + 15061971780.

It is an arithmetic number, because the mean of its divisors is an integer number (15061971780).

Almost surely, 2^30123943559 is an apocalyptic number.

30123943559 is a deficient number, since it is larger than the sum of its proper divisors (1).

30123943559 is an equidigital number, since it uses as much as digits as its factorization.

30123943559 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 437400, while the sum is 44.

The spelling of 30123943559 in words is "thirty billion, one hundred twenty-three million, nine hundred forty-three thousand, five hundred fifty-nine".