30231230321 has 4 divisors (see below), whose sum is σ = 30968577444. Its totient is φ = 29493883200.

The previous prime is 30231230297. The next prime is 30231230327. The reversal of 30231230321 is 12303213203.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 921790321 + 29309440000 = 30361^2 + 171200^2 .

It is a cyclic number.

It is not a de Polignac number, because 30231230321 - 2⁶ = 30231230257 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30231230293 and 30231230302.

It is not an unprimeable number, because it can be changed into a prime (30231230327) 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, 368673500 + ... + 368673581.

It is an arithmetic number, because the mean of its divisors is an integer number (7742144361).

Almost surely, 2^30231230321 is an apocalyptic number.

It is an amenable number.

30231230321 is a deficient number, since it is larger than the sum of its proper divisors (737347123).

30231230321 is an equidigital number, since it uses as much as digits as its factorization.

30231230321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 737347122.

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 30231230321 its reverse (12303213203), we get a palindrome (42534443524).

The spelling of 30231230321 in words is "thirty billion, two hundred thirty-one million, two hundred thirty thousand, three hundred twenty-one".