30303430500000 has 672 divisors, whose sum is σ = 114811777890432. Its totient is φ = 6854860800000.

The previous prime is 30303430499939. The next prime is 30303430500073. The reversal of 30303430500000 is 503430303.

It is a tau number, because it is divible by the number of its divisors (672).

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 30303430500000.

It is an unprimeable number.

It is a polite number, since it can be written in 111 ways as a sum of consecutive naturals, for example, 1018485124 + ... + 1018514876.

It is an arithmetic number, because the mean of its divisors is an integer number (170850859956).

Almost surely, 2^{30303430500000} is an apocalyptic number.

30303430500000 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30303430500000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (57405888945216).

30303430500000 is an abundant number, since it is smaller than the sum of its proper divisors (84508347390432).

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

30303430500000 is an frugal number, since it uses more digits than its factorization.

30303430500000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29900 (or 29867 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 21.

Adding to 30303430500000 its reverse (503430303), we get a palindrome (30303933930303).

The spelling of 30303430500000 in words is "thirty trillion, three hundred three billion, four hundred thirty million, five hundred thousand".