30423556221 has 4 divisors (see below), whose sum is σ = 40564741632. Its totient is φ = 20282370812.

The previous prime is 30423556211. The next prime is 30423556277. The reversal of 30423556221 is 12265532403.

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.

It is a cyclic number.

It is not a de Polignac number, because 30423556221 - 2¹⁵ = 30423523453 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30423556211) 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, 5070592701 + ... + 5070592706.

It is an arithmetic number, because the mean of its divisors is an integer number (10141185408).

Almost surely, 2^30423556221 is an apocalyptic number.

It is an amenable number.

30423556221 is a deficient number, since it is larger than the sum of its proper divisors (10141185411).

30423556221 is a wasteful number, since it uses less digits than its factorization.

30423556221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10141185410.

The product of its (nonzero) digits is 43200, while the sum is 33.

The spelling of 30423556221 in words is "thirty billion, four hundred twenty-three million, five hundred fifty-six thousand, two hundred twenty-one".