30423042342 has 256 divisors, whose sum is σ = 90009999360. Its totient is φ = 7435169280.

The previous prime is 30423042313. The next prime is 30423042347. The reversal of 30423042342 is 24324032403.

30423042342 is a `hidden beast` number, since 3 + 0 + 4 + 230 + 423 + 4 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30423042347) 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 127 ways as a sum of consecutive naturals, for example, 8551228 + ... + 8554784.

It is an arithmetic number, because the mean of its divisors is an integer number (351601560).

Almost surely, 2^30423042342 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30423042342, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45004999680).

30423042342 is an abundant number, since it is smaller than the sum of its proper divisors (59586957018).

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

30423042342 is a wasteful number, since it uses less digits than its factorization.

30423042342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3625 (or 3597 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 27.

Adding to 30423042342 its reverse (24324032403), we get a palindrome (54747074745).

The spelling of 30423042342 in words is "thirty billion, four hundred twenty-three million, forty-two thousand, three hundred forty-two".