12331012 has 12 divisors (see below), whose sum is σ = 21771036. Its totient is φ = 6110720.

The previous prime is 12330991. The next prime is 12331049. The reversal of 12331012 is 21013321.

It can be written as a sum of positive squares in 2 ways, for example, as 3944196 + 8386816 = 1986^2 + 2896^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12330983 and 12331001.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13189 + ... + 14092.

It is an arithmetic number, because the mean of its divisors is an integer number (1814253).

Almost surely, 2^12331012 is an apocalyptic number.

It is an amenable number.

12331012 is a deficient number, since it is larger than the sum of its proper divisors (9440024).

12331012 is a wasteful number, since it uses less digits than its factorization.

12331012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27398 (or 27396 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 12331012 is about 3511.5540719174. The cubic root of 12331012 is about 231.0288626692.

Adding to 12331012 its reverse (21013321), we get a palindrome (33344333).

The spelling of 12331012 in words is "twelve million, three hundred thirty-one thousand, twelve".