30542918093 has 2 divisors, whose sum is σ = 30542918094. Its totient is φ = 30542918092.

The previous prime is 30542918071. The next prime is 30542918167. The reversal of 30542918093 is 39081924503.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 29117327044 + 1425591049 = 170638^2 + 37757^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30542918093 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30542918053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15271459046 + 15271459047.

It is an arithmetic number, because the mean of its divisors is an integer number (15271459047).

Almost surely, 2^30542918093 is an apocalyptic number.

It is an amenable number.

30542918093 is a deficient number, since it is larger than the sum of its proper divisors (1).

30542918093 is an equidigital number, since it uses as much as digits as its factorization.

30542918093 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 233280, while the sum is 44.

The spelling of 30542918093 in words is "thirty billion, five hundred forty-two million, nine hundred eighteen thousand, ninety-three".