30123313321 has 4 divisors (see below), whose sum is σ = 30124296532. Its totient is φ = 30122330112.

The previous prime is 30123313313. The next prime is 30123313331. The reversal of 30123313321 is 12331332103.

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 8937055296 + 21186258025 = 94536^2 + 145555^2 .

It is a cyclic number.

It is not a de Polignac number, because 30123313321 - 2³ = 30123313313 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30123313292 and 30123313301.

It is not an unprimeable number, because it can be changed into a prime (30123313301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 444120 + ... + 507433.

It is an arithmetic number, because the mean of its divisors is an integer number (7531074133).

Almost surely, 2^30123313321 is an apocalyptic number.

It is an amenable number.

30123313321 is a deficient number, since it is larger than the sum of its proper divisors (983211).

30123313321 is an equidigital number, since it uses as much as digits as its factorization.

30123313321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 983210.

The product of its (nonzero) digits is 972, while the sum is 22.

Adding to 30123313321 its reverse (12331332103), we get a palindrome (42454645424).

The spelling of 30123313321 in words is "thirty billion, one hundred twenty-three million, three hundred thirteen thousand, three hundred twenty-one".