12030185620 has 24 divisors (see below), whose sum is σ = 25299979488. Its totient is φ = 4805104800.

The previous prime is 12030185611. The next prime is 12030185647. The reversal of 12030185620 is 2658103021.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 421426 + ... + 449065.

It is an arithmetic number, because the mean of its divisors is an integer number (1054165812).

Almost surely, 2^12030185620 is an apocalyptic number.

12030185620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12030185620 is an abundant number, since it is smaller than the sum of its proper divisors (13269793868).

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

12030185620 is a wasteful number, since it uses less digits than its factorization.

12030185620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 871191 (or 871189 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 28.

Adding to 12030185620 its reverse (2658103021), we get a palindrome (14688288641).

The spelling of 12030185620 in words is "twelve billion, thirty million, one hundred eighty-five thousand, six hundred twenty".