30115220243 has 2 divisors, whose sum is σ = 30115220244. Its totient is φ = 30115220242.

The previous prime is 30115220203. The next prime is 30115220263. The reversal of 30115220243 is 34202251103.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 30115220243 - 2¹⁰ = 30115219219 is a prime.

It is not a weakly prime, because it can be changed into another prime (30115220203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15057610121 + 15057610122.

It is an arithmetic number, because the mean of its divisors is an integer number (15057610122).

Almost surely, 2^30115220243 is an apocalyptic number.

30115220243 is a deficient number, since it is larger than the sum of its proper divisors (1).

30115220243 is an equidigital number, since it uses as much as digits as its factorization.

30115220243 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1440, while the sum is 23.

Adding to 30115220243 its reverse (34202251103), we get a palindrome (64317471346).

The spelling of 30115220243 in words is "thirty billion, one hundred fifteen million, two hundred twenty thousand, two hundred forty-three".