30310442420 has 96 divisors (see below), whose sum is σ = 66397024512. Its totient is φ = 11615505408.

The previous prime is 30310442389. The next prime is 30310442423. The reversal of 30310442420 is 2424401303.

It is a super-2 number, since 2×30310442420² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30310442423) 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 31 ways as a sum of consecutive naturals, for example, 7968239 + ... + 7972041.

It is an arithmetic number, because the mean of its divisors is an integer number (691635672).

Almost surely, 2^30310442420 is an apocalyptic number.

It is an amenable number.

30310442420 is an abundant number, since it is smaller than the sum of its proper divisors (36086582092).

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

30310442420 is a wasteful number, since it uses less digits than its factorization.

30310442420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4041 (or 4039 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 23.

Adding to 30310442420 its reverse (2424401303), we get a palindrome (32734843723).

The spelling of 30310442420 in words is "thirty billion, three hundred ten million, four hundred forty-two thousand, four hundred twenty".