12313028 has 24 divisors (see below), whose sum is σ = 26521152. Its totient is φ = 4870944.

The previous prime is 12313003. The next prime is 12313043. The reversal of 12313028 is 82031321.

It is a super-2 number, since 2×12313028² = 303221317057568, which contains 22 as substring.

It is a plaindrome in base 15.

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, 16550 + ... + 17277.

It is an arithmetic number, because the mean of its divisors is an integer number (1105048).

Almost surely, 2^12313028 is an apocalyptic number.

It is an amenable number.

12313028 is an abundant number, since it is smaller than the sum of its proper divisors (14208124).

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

12313028 is a wasteful number, since it uses less digits than its factorization.

12313028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33851 (or 33849 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 12313028 is about 3508.9924479828. The cubic root of 12313028 is about 230.9164943696.

Adding to 12313028 its reverse (82031321), we get a palindrome (94344349).

The spelling of 12313028 in words is "twelve million, three hundred thirteen thousand, twenty-eight".