30400420203221 has 4 divisors (see below), whose sum is σ = 32000442319200. Its totient is φ = 28800398087244.

The previous prime is 30400420203211. The next prime is 30400420203253. The reversal of 30400420203221 is 12230202400403.

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.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30400420203221 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30400420203211) 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, 800011057961 + ... + 800011057998.

It is an arithmetic number, because the mean of its divisors is an integer number (8000110579800).

Almost surely, 2^{30400420203221} is an apocalyptic number.

It is an amenable number.

30400420203221 is a deficient number, since it is larger than the sum of its proper divisors (1600022115979).

30400420203221 is a wasteful number, since it uses less digits than its factorization.

30400420203221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1600022115978.

The product of its (nonzero) digits is 2304, while the sum is 23.

Adding to 30400420203221 its reverse (12230202400403), we get a palindrome (42630622603624).

The spelling of 30400420203221 in words is "thirty trillion, four hundred billion, four hundred twenty million, two hundred three thousand, two hundred twenty-one".