30021022243 has 4 divisors (see below), whose sum is σ = 30152118640. Its totient is φ = 29889925848.

The previous prime is 30021022231. The next prime is 30021022249. The reversal of 30021022243 is 34222012003.

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-30021022243 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 30021022243.

It is not an unprimeable number, because it can be changed into a prime (30021022249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 65547855 + ... + 65548312.

It is an arithmetic number, because the mean of its divisors is an integer number (7538029660).

Almost surely, 2^30021022243 is an apocalyptic number.

30021022243 is a deficient number, since it is larger than the sum of its proper divisors (131096397).

30021022243 is a wasteful number, since it uses less digits than its factorization.

30021022243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131096396.

The product of its (nonzero) digits is 576, while the sum is 19.

Adding to 30021022243 its reverse (34222012003), we get a palindrome (64243034246).

The spelling of 30021022243 in words is "thirty billion, twenty-one million, twenty-two thousand, two hundred forty-three".