30243125205321 has 128 divisors (see below), whose sum is σ = 50590114713600. Its totient is φ = 15687781401600.

The previous prime is 30243125205311. The next prime is 30243125205331. The reversal of 30243125205321 is 12350252134203.

It is an interprime number because it is at equal distance from previous prime (30243125205311) and next prime (30243125205331).

It is not a de Polignac number, because 30243125205321 - 2¹¹ = 30243125203273 is a prime.

It is not an unprimeable number, because it can be changed into a prime (30243125205311) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 188801355 + ... + 188961471.

It is an arithmetic number, because the mean of its divisors is an integer number (395235271200).

Almost surely, 2^{30243125205321} is an apocalyptic number.

It is an amenable number.

30243125205321 is a deficient number, since it is larger than the sum of its proper divisors (20346989508279).

30243125205321 is a wasteful number, since it uses less digits than its factorization.

30243125205321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160399.

The product of its (nonzero) digits is 43200, while the sum is 33.

Adding to 30243125205321 its reverse (12350252134203), we get a palindrome (42593377339524).

The spelling of 30243125205321 in words is "thirty trillion, two hundred forty-three billion, one hundred twenty-five million, two hundred five thousand, three hundred twenty-one".