30305114020240 has 40 divisors (see below), whose sum is σ = 70459624848960. Its totient is φ = 12122005220736.

The previous prime is 30305114020201. The next prime is 30305114020241. The reversal of 30305114020240 is 4202041150303.

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (30305114020241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38952327 + ... + 39722713.

It is an arithmetic number, because the mean of its divisors is an integer number (1761490621224).

Almost surely, 2^{30305114020240} is an apocalyptic number.

It is an amenable number.

30305114020240 is an abundant number, since it is smaller than the sum of its proper divisors (40154510828720).

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

30305114020240 is a wasteful number, since it uses less digits than its factorization.

30305114020240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1262119 (or 1262113 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

Adding to 30305114020240 its reverse (4202041150303), we get a palindrome (34507155170543).

The spelling of 30305114020240 in words is "thirty trillion, three hundred five billion, one hundred fourteen million, twenty thousand, two hundred forty".