30303050031020 has 48 divisors (see below), whose sum is σ = 69024545698080. Its totient is φ = 11108323362816.

The previous prime is 30303050030987. The next prime is 30303050031161. The reversal of 30303050031020 is 2013005030303.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 30303050030983 and 30303050031001.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 419209157 + ... + 419281436.

It is an arithmetic number, because the mean of its divisors is an integer number (1438011368710).

Almost surely, 2^{30303050031020} is an apocalyptic number.

It is an amenable number.

30303050031020 is an abundant number, since it is smaller than the sum of its proper divisors (38721495667060).

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

30303050031020 is a wasteful number, since it uses less digits than its factorization.

30303050031020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 838490754 (or 838490752 counting only the distinct ones).

The product of its (nonzero) digits is 810, while the sum is 20.

Adding to 30303050031020 its reverse (2013005030303), we get a palindrome (32316055061323).

The spelling of 30303050031020 in words is "thirty trillion, three hundred three billion, fifty million, thirty-one thousand, twenty".