30231322321 has 4 divisors (see below), whose sum is σ = 30233689444. Its totient is φ = 30228955200.

The previous prime is 30231322279. The next prime is 30231322403. The reversal of 30231322321 is 12322313203.

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 16144243600 + 14087078721 = 127060^2 + 118689^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30231322321 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30231322292 and 30231322301.

It is not an unprimeable number, because it can be changed into a prime (30231323321) 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, 1164300 + ... + 1189981.

It is an arithmetic number, because the mean of its divisors is an integer number (7558422361).

Almost surely, 2^30231322321 is an apocalyptic number.

It is an amenable number.

30231322321 is a deficient number, since it is larger than the sum of its proper divisors (2367123).

30231322321 is a wasteful number, since it uses less digits than its factorization.

30231322321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2367122.

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 30231322321 its reverse (12322313203), we get a palindrome (42553635524).

The spelling of 30231322321 in words is "thirty billion, two hundred thirty-one million, three hundred twenty-two thousand, three hundred twenty-one".