30221503423 has 4 divisors (see below), whose sum is σ = 30924329128. Its totient is φ = 29518677720.

The previous prime is 30221503397. The next prime is 30221503471. The reversal of 30221503423 is 32430512203.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32430512203 = 3853 ⋅8416951.

It is a cyclic number.

It is not a de Polignac number, because 30221503423 - 2⁹ = 30221502911 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 (30221503523) 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, 351412788 + ... + 351412873.

It is an arithmetic number, because the mean of its divisors is an integer number (7731082282).

Almost surely, 2^30221503423 is an apocalyptic number.

30221503423 is a deficient number, since it is larger than the sum of its proper divisors (702825705).

30221503423 is an equidigital number, since it uses as much as digits as its factorization.

30221503423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 702825704.

The product of its (nonzero) digits is 4320, while the sum is 25.

The spelling of 30221503423 in words is "thirty billion, two hundred twenty-one million, five hundred three thousand, four hundred twenty-three".