12003047828 has 6 divisors (see below), whose sum is σ = 21005333706. Its totient is φ = 6001523912.

The previous prime is 12003047827. The next prime is 12003047839. The reversal of 12003047828 is 82874030021.

It can be written as a sum of positive squares in only one way, i.e., 9272149264 + 2730898564 = 96292^2 + 52258^2 .

It is a super-2 number, since 2×12003047828² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12003047827) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1500380975 + ... + 1500380982.

It is an arithmetic number, because the mean of its divisors is an integer number (3500888951).

Almost surely, 2^12003047828 is an apocalyptic number.

It is an amenable number.

12003047828 is a deficient number, since it is larger than the sum of its proper divisors (9002285878).

12003047828 is a wasteful number, since it uses less digits than its factorization.

12003047828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3000761961 (or 3000761959 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 35.

Adding to 12003047828 its reverse (82874030021), we get a palindrome (94877077849).

The spelling of 12003047828 in words is "twelve billion, three million, forty-seven thousand, eight hundred twenty-eight".