30509931113 has 2 divisors, whose sum is σ = 30509931114. Its totient is φ = 30509931112.

The previous prime is 30509931103. The next prime is 30509931191. The reversal of 30509931113 is 31113990503.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 23916003904 + 6593927209 = 154648^2 + 81203^2 .

It is a cyclic number.

It is not a de Polignac number, because 30509931113 - 2⁴ = 30509931097 is a prime.

It is not a weakly prime, because it can be changed into another prime (30509931103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15254965556 + 15254965557.

It is an arithmetic number, because the mean of its divisors is an integer number (15254965557).

Almost surely, 2^30509931113 is an apocalyptic number.

It is an amenable number.

30509931113 is a deficient number, since it is larger than the sum of its proper divisors (1).

30509931113 is an equidigital number, since it uses as much as digits as its factorization.

30509931113 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10935, while the sum is 35.

The spelling of 30509931113 in words is "thirty billion, five hundred nine million, nine hundred thirty-one thousand, one hundred thirteen".