30012005430 has 96 divisors (see below), whose sum is σ = 85433051808. Its totient is φ = 7249305600.

The previous prime is 30012005399. The next prime is 30012005449. The reversal of 30012005430 is 3450021003.

30012005430 is a `hidden beast` number, since 3 + 0 + 0 + 120 + 0 + 543 + 0 = 666.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 219510 + ... + 328950.

It is an arithmetic number, because the mean of its divisors is an integer number (889927623).

Almost surely, 2^30012005430 is an apocalyptic number.

30012005430 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 30012005430, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42716525904).

30012005430 is an abundant number, since it is smaller than the sum of its proper divisors (55421046378).

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

30012005430 is a wasteful number, since it uses less digits than its factorization.

30012005430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109742 (or 109739 counting only the distinct ones).

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

Adding to 30012005430 its reverse (3450021003), we get a palindrome (33462026433).

The spelling of 30012005430 in words is "thirty billion, twelve million, five thousand, four hundred thirty".