30121330243 has 2 divisors, whose sum is σ = 30121330244. Its totient is φ = 30121330242.

The previous prime is 30121330237. The next prime is 30121330247. The reversal of 30121330243 is 34203312103.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 30121330243 - 2⁹ = 30121329731 is a prime.

It is not a weakly prime, because it can be changed into another prime (30121330247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15060665121 + 15060665122.

It is an arithmetic number, because the mean of its divisors is an integer number (15060665122).

Almost surely, 2^30121330243 is an apocalyptic number.

30121330243 is a deficient number, since it is larger than the sum of its proper divisors (1).

30121330243 is an equidigital number, since it uses as much as digits as its factorization.

30121330243 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 30121330243 its reverse (34203312103), we get a palindrome (64324642346).

The spelling of 30121330243 in words is "thirty billion, one hundred twenty-one million, three hundred thirty thousand, two hundred forty-three".