30340430123221 has 4 divisors (see below), whose sum is σ = 30340441216512. Its totient is φ = 30340419029932.

The previous prime is 30340430123167. The next prime is 30340430123279. The reversal of 30340430123221 is 12232103404303.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30340430123221 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 30340430123221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30340439123221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1795626 + ... + 7994068.

It is an arithmetic number, because the mean of its divisors is an integer number (7585110304128).

Almost surely, 2^{30340430123221} is an apocalyptic number.

It is an amenable number.

30340430123221 is a deficient number, since it is larger than the sum of its proper divisors (11093291).

30340430123221 is an equidigital number, since it uses as much as digits as its factorization.

30340430123221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11093290.

The product of its (nonzero) digits is 10368, while the sum is 28.

Adding to 30340430123221 its reverse (12232103404303), we get a palindrome (42572533527524).

The spelling of 30340430123221 in words is "thirty trillion, three hundred forty billion, four hundred thirty million, one hundred twenty-three thousand, two hundred twenty-one".