30520043220115 has 4 divisors (see below), whose sum is σ = 36624051864144. Its totient is φ = 24416034576088.

The previous prime is 30520043220113. The next prime is 30520043220127. The reversal of 30520043220115 is 51102234002503.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 30520043220115 - 2¹ = 30520043220113 is a prime.

It is a super-3 number, since 3×30520043220115³ (a number of 41 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30520043220113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3052004322007 + ... + 3052004322016.

It is an arithmetic number, because the mean of its divisors is an integer number (9156012966036).

Almost surely, 2^{30520043220115} is an apocalyptic number.

30520043220115 is a deficient number, since it is larger than the sum of its proper divisors (6104008644029).

30520043220115 is an equidigital number, since it uses as much as digits as its factorization.

30520043220115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6104008644028.

The product of its (nonzero) digits is 7200, while the sum is 28.

Adding to 30520043220115 its reverse (51102234002503), we get a palindrome (81622277222618).

The spelling of 30520043220115 in words is "thirty trillion, five hundred twenty billion, forty-three million, two hundred twenty thousand, one hundred fifteen".