30320544243125 has 20 divisors (see below), whose sum is σ = 38129880566844. Its totient is φ = 24101935728000.

The previous prime is 30320544243013. The next prime is 30320544243127. The reversal of 30320544243125 is 52134244502303.

It can be written as a sum of positive squares in 10 ways, for example, as 20044012518916 + 10276531724209 = 4477054^2 + 3205703^2 .

It is not a de Polignac number, because 30320544243125 - 2¹⁴ = 30320544226741 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30320544243127) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 154401464 + ... + 154597713.

Almost surely, 2^{30320544243125} is an apocalyptic number.

It is an amenable number.

30320544243125 is a deficient number, since it is larger than the sum of its proper divisors (7809336323719).

30320544243125 is an equidigital number, since it uses as much as digits as its factorization.

30320544243125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 308999354 (or 308999339 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 38.

Adding to 30320544243125 its reverse (52134244502303), we get a palindrome (82454788745428).

The spelling of 30320544243125 in words is "thirty trillion, three hundred twenty billion, five hundred forty-four million, two hundred forty-three thousand, one hundred twenty-five".