12030352530 has 64 divisors (see below), whose sum is σ = 33188375808. Its totient is φ = 2733891840.

The previous prime is 12030352511. The next prime is 12030352571. The reversal of 12030352530 is 3525303021.

It is a happy number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 12030352530.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 129241 + ... + 201900.

It is an arithmetic number, because the mean of its divisors is an integer number (518568372).

Almost surely, 2^12030352530 is an apocalyptic number.

12030352530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12030352530 is an abundant number, since it is smaller than the sum of its proper divisors (21158023278).

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

12030352530 is a wasteful number, since it uses less digits than its factorization.

12030352530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 331331.

The product of its (nonzero) digits is 2700, while the sum is 24.

Adding to 12030352530 its reverse (3525303021), we get a palindrome (15555655551).

The spelling of 12030352530 in words is "twelve billion, thirty million, three hundred fifty-two thousand, five hundred thirty".