30748513109 has 2 divisors, whose sum is σ = 30748513110. Its totient is φ = 30748513108.

The previous prime is 30748513097. The next prime is 30748513121. The reversal of 30748513109 is 90131584703.

It is a balanced prime because it is at equal distance from previous prime (30748513097) and next prime (30748513121).

It can be written as a sum of positive squares in only one way, i.e., 29904784900 + 843728209 = 172930^2 + 29047^2 .

It is an emirp because it is prime and its reverse (90131584703) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 30748513109 - 2²⁸ = 30480077653 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30748513199) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15374256554 + 15374256555.

It is an arithmetic number, because the mean of its divisors is an integer number (15374256555).

Almost surely, 2^30748513109 is an apocalyptic number.

It is an amenable number.

30748513109 is a deficient number, since it is larger than the sum of its proper divisors (1).

30748513109 is an equidigital number, since it uses as much as digits as its factorization.

30748513109 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 90720, while the sum is 41.

The spelling of 30748513109 in words is "thirty billion, seven hundred forty-eight million, five hundred thirteen thousand, one hundred nine".