30520450440313 has 4 divisors (see below), whose sum is σ = 30520696421520. Its totient is φ = 30520204459108.

The previous prime is 30520450440269. The next prime is 30520450440353. The reversal of 30520450440313 is 31304405402503.

It is a happy number.

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.

It is a cyclic number.

It is not a de Polignac number, because 30520450440313 - 2⁴¹ = 28321427184761 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30520450440353) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 122804395 + ... + 123052672.

It is an arithmetic number, because the mean of its divisors is an integer number (7630174105380).

Almost surely, 2^{30520450440313} is an apocalyptic number.

It is an amenable number.

30520450440313 is a deficient number, since it is larger than the sum of its proper divisors (245981207).

30520450440313 is a wasteful number, since it uses less digits than its factorization.

30520450440313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 245981206.

The product of its (nonzero) digits is 86400, while the sum is 34.

Adding to 30520450440313 its reverse (31304405402503), we get a palindrome (61824855842816).

The spelling of 30520450440313 in words is "thirty trillion, five hundred twenty billion, four hundred fifty million, four hundred forty thousand, three hundred thirteen".