30423312420 has 96 divisors (see below), whose sum is σ = 85832466048. Its totient is φ = 8051377152.

The previous prime is 30423312397. The next prime is 30423312427. The reversal of 30423312420 is 2421332403.

It is not an unprimeable number, because it can be changed into a prime (30423312427) 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, 10954072 + ... + 10956848.

It is an arithmetic number, because the mean of its divisors is an integer number (894088188).

Almost surely, 2^30423312420 is an apocalyptic number.

30423312420 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 30423312420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42916233024).

30423312420 is an abundant number, since it is smaller than the sum of its proper divisors (55409153628).

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

30423312420 is a wasteful number, since it uses less digits than its factorization.

30423312420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4109 (or 4107 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 24.

Adding to 30423312420 its reverse (2421332403), we get a palindrome (32844644823).

The spelling of 30423312420 in words is "thirty billion, four hundred twenty-three million, three hundred twelve thousand, four hundred twenty".