30005103240 has 256 divisors, whose sum is σ = 120321792000. Its totient is φ = 6497314560.

The previous prime is 30005103239. The next prime is 30005103253. The reversal of 30005103240 is 4230150003.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

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 63 ways as a sum of consecutive naturals, for example, 39195 + ... + 248085.

It is an arithmetic number, because the mean of its divisors is an integer number (470007000).

Almost surely, 2^30005103240 is an apocalyptic number.

30005103240 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 30005103240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (60160896000).

30005103240 is an abundant number, since it is smaller than the sum of its proper divisors (90316688760).

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

30005103240 is a wasteful number, since it uses less digits than its factorization.

30005103240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 208937 (or 208927 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 18.

Adding to 30005103240 its reverse (4230150003), we get a palindrome (34235253243).

The spelling of 30005103240 in words is "thirty billion, five million, one hundred three thousand, two hundred forty".