30324391321 has 9 divisors (see below), whose sum is σ = 35276730399. Its totient is φ = 25991290584.

The previous prime is 30324391289. The next prime is 30324391337. The reversal of 30324391321 is 12319342303.

The square root of 30324391321 is 174139.

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

It can be written as a sum of positive squares in only one way, i.e., 60918025 + 30263473296 = 7805^2 + 173964^2 .

It is not a de Polignac number, because 30324391321 - 2⁵ = 30324391289 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30324391351) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1206535 + ... + 1231411.

It is an arithmetic number, because the mean of its divisors is an integer number (3919636711).

Almost surely, 2^30324391321 is an apocalyptic number.

30324391321 is the 174139-th square number.

30324391321 is the 87070-th centered octagonal number.

It is an amenable number.

30324391321 is a deficient number, since it is larger than the sum of its proper divisors (4952339078).

30324391321 is an frugal number, since it uses more digits than its factorization.

30324391321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49768 (or 24884 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 31.

Multiplying 30324391321 by its product of nonzero digits (11664), we get a square (353703700368144 = 18807012²).

The spelling of 30324391321 in words is "thirty billion, three hundred twenty-four million, three hundred ninety-one thousand, three hundred twenty-one".