30001001321 has 4 divisors (see below), whose sum is σ = 30040950144. Its totient is φ = 29961052500.

The previous prime is 30001001293. The next prime is 30001001383. The reversal of 30001001321 is 12310010003.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 12310010003 = 75211 ⋅163673.

It is a cyclic number.

It is not a de Polignac number, because 30001001321 - 2¹⁸ = 30000739177 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30001001221) 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, 19973285 + ... + 19974786.

It is an arithmetic number, because the mean of its divisors is an integer number (7510237536).

Almost surely, 2^30001001321 is an apocalyptic number.

It is an amenable number.

30001001321 is a deficient number, since it is larger than the sum of its proper divisors (39948823).

30001001321 is an equidigital number, since it uses as much as digits as its factorization.

30001001321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39948822.

The product of its (nonzero) digits is 18, while the sum is 11.

Adding to 30001001321 its reverse (12310010003), we get a palindrome (42311011324).

The spelling of 30001001321 in words is "thirty billion, one million, one thousand, three hundred twenty-one".