30215015204420 has 24 divisors (see below), whose sum is σ = 65498355541248. Its totient is φ = 11696134917600.

The previous prime is 30215015204411. The next prime is 30215015204431. The reversal of 30215015204420 is 2440251051203.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24366947126 + ... + 24366948365.

It is an arithmetic number, because the mean of its divisors is an integer number (2729098147552).

Almost surely, 2^{30215015204420} is an apocalyptic number.

It is an amenable number.

30215015204420 is an abundant number, since it is smaller than the sum of its proper divisors (35283340336828).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30215015204420 is a wasteful number, since it uses less digits than its factorization.

30215015204420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48733895531 (or 48733895529 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 29.

Adding to 30215015204420 its reverse (2440251051203), we get a palindrome (32655266255623).

The spelling of 30215015204420 in words is "thirty trillion, two hundred fifteen billion, fifteen million, two hundred four thousand, four hundred twenty".