30505332142240 has 48 divisors (see below), whose sum is σ = 75861944413920. Its totient is φ = 11559915336960.

The previous prime is 30505332142163. The next prime is 30505332142291. The reversal of 30505332142240 is 4224123350503.

It is a junction number, because it is equal to n+sod(n) for n = 30505332142196 and 30505332142205.

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, 5017321326 + ... + 5017327405.

It is an arithmetic number, because the mean of its divisors is an integer number (1580457175290).

Almost surely, 2^{30505332142240} is an apocalyptic number.

It is an amenable number.

30505332142240 is an abundant number, since it is smaller than the sum of its proper divisors (45356612271680).

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

30505332142240 is a wasteful number, since it uses less digits than its factorization.

30505332142240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10034648765 (or 10034648757 counting only the distinct ones).

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

Adding to 30505332142240 its reverse (4224123350503), we get a palindrome (34729455492743).

The spelling of 30505332142240 in words is "thirty trillion, five hundred five billion, three hundred thirty-two million, one hundred forty-two thousand, two hundred forty".