30310331020 has 48 divisors (see below), whose sum is σ = 68427394560. Its totient is φ = 11241630144.

The previous prime is 30310330997. The next prime is 30310331021. The reversal of 30310331020 is 2013301303.

It is a junction number, because it is equal to n+sod(n) for n = 30310330985 and 30310331003.

It is not an unprimeable number, because it can be changed into a prime (30310331021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 830694 + ... + 866413.

It is an arithmetic number, because the mean of its divisors is an integer number (1425570720).

Almost surely, 2^30310331020 is an apocalyptic number.

It is an amenable number.

30310331020 is an abundant number, since it is smaller than the sum of its proper divisors (38117063540).

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

30310331020 is a wasteful number, since it uses less digits than its factorization.

30310331020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1697182 (or 1697180 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 16.

Adding to 30310331020 its reverse (2013301303), we get a palindrome (32323632323).

The spelling of 30310331020 in words is "thirty billion, three hundred ten million, three hundred thirty-one thousand, twenty".