30120013232321 has 16 divisors (see below), whose sum is σ = 30957394094928. Its totient is φ = 29287557504000.

The previous prime is 30120013232143. The next prime is 30120013232359. The reversal of 30120013232321 is 12323231002103.

It can be written as a sum of positive squares in 8 ways, for example, as 1932408592321 + 28187604640000 = 1390111^2 + 5309200^2 .

It is a cyclic number.

It is not a de Polignac number, because 30120013232321 - 2³⁴ = 30102833363137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30120013232921) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 75195851 + ... + 75595343.

It is an arithmetic number, because the mean of its divisors is an integer number (1934837130933).

Almost surely, 2^{30120013232321} is an apocalyptic number.

It is an amenable number.

30120013232321 is a deficient number, since it is larger than the sum of its proper divisors (837380862607).

30120013232321 is a wasteful number, since it uses less digits than its factorization.

30120013232321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 405652.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 30120013232321 its reverse (12323231002103), we get a palindrome (42443244234424).

The spelling of 30120013232321 in words is "thirty trillion, one hundred twenty billion, thirteen million, two hundred thirty-two thousand, three hundred twenty-one".