30421000243 has 4 divisors (see below), whose sum is σ = 30423986208. Its totient is φ = 30418014280.

The previous prime is 30421000213. The next prime is 30421000249. The reversal of 30421000243 is 34200012403.

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

It is a cyclic number.

It is not a de Polignac number, because 30421000243 - 2¹³ = 30420992051 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 30421000243.

It is not an unprimeable number, because it can be changed into a prime (30421000249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1477648 + ... + 1498093.

It is an arithmetic number, because the mean of its divisors is an integer number (7605996552).

Almost surely, 2^30421000243 is an apocalyptic number.

30421000243 is a deficient number, since it is larger than the sum of its proper divisors (2985965).

30421000243 is a wasteful number, since it uses less digits than its factorization.

30421000243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2985964.

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

Adding to 30421000243 its reverse (34200012403), we get a palindrome (64621012646).

The spelling of 30421000243 in words is "thirty billion, four hundred twenty-one million, two hundred forty-three", and thus it is an aban number.