30227647321 has 3 divisors (see below), whose sum is σ = 30227821183. Its totient is φ = 30227473460.

The previous prime is 30227647319. The next prime is 30227647361. The reversal of 30227647321 is 12374672203.

The square root of 30227647321 is 173861.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 12374672203 = 19 ⋅651298537.

It can be written as a sum of positive squares in only one way, i.e., 24277067721 + 5950579600 = 155811^2 + 77140^2 .

It is not a de Polignac number, because 30227647321 - 2¹ = 30227647319 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30227647301) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 86931 + ... + 260791.

Almost surely, 2^30227647321 is an apocalyptic number.

30227647321 is the 173861-st square number.

30227647321 is the 86931-st centered octagonal number.

It is an amenable number.

30227647321 is a deficient number, since it is larger than the sum of its proper divisors (173862).

30227647321 is an frugal number, since it uses more digits than its factorization.

30227647321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 347722 (or 173861 counting only the distinct ones).

The product of its (nonzero) digits is 84672, while the sum is 37.

The spelling of 30227647321 in words is "thirty billion, two hundred twenty-seven million, six hundred forty-seven thousand, three hundred twenty-one".