30133330243 has 4 divisors (see below), whose sum is σ = 30170578680. Its totient is φ = 30096081808.

The previous prime is 30133330217. The next prime is 30133330273. The reversal of 30133330243 is 34203333103.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30133330243 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30133330273) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18623005 + ... + 18624622.

It is an arithmetic number, because the mean of its divisors is an integer number (7542644670).

Almost surely, 2^30133330243 is an apocalyptic number.

30133330243 is a deficient number, since it is larger than the sum of its proper divisors (37248437).

30133330243 is an equidigital number, since it uses as much as digits as its factorization.

30133330243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37248436.

The product of its (nonzero) digits is 5832, while the sum is 25.

Adding to 30133330243 its reverse (34203333103), we get a palindrome (64336663346).

The spelling of 30133330243 in words is "thirty billion, one hundred thirty-three million, three hundred thirty thousand, two hundred forty-three".