12017113828 has 6 divisors (see below), whose sum is σ = 21029949206. Its totient is φ = 6008556912.

The previous prime is 12017113819. The next prime is 12017113847. The reversal of 12017113828 is 82831171021.

It can be written as a sum of positive squares in only one way, i.e., 8613324864 + 3403788964 = 92808^2 + 58342^2 .

It is a super-2 number, since 2×12017113828² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12017113793 and 12017113802.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1502139225 + ... + 1502139232.

Almost surely, 2^12017113828 is an apocalyptic number.

It is an amenable number.

12017113828 is a deficient number, since it is larger than the sum of its proper divisors (9012835378).

12017113828 is a wasteful number, since it uses less digits than its factorization.

12017113828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3004278461 (or 3004278459 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 34.

Adding to 12017113828 its reverse (82831171021), we get a palindrome (94848284849).

The spelling of 12017113828 in words is "twelve billion, seventeen million, one hundred thirteen thousand, eight hundred twenty-eight".