1305041212 has 12 divisors (see below), whose sum is σ = 2288779416. Its totient is φ = 651104240.

The previous prime is 1305041203. The next prime is 1305041233. The reversal of 1305041212 is 2121405031.

It is a self number, because there is not a number n which added to its sum of digits gives 1305041212.

It is a congruent number.

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, 352018 + ... + 355705.

It is an arithmetic number, because the mean of its divisors is an integer number (190731618).

Almost surely, 2^1305041212 is an apocalyptic number.

It is an amenable number.

1305041212 is a deficient number, since it is larger than the sum of its proper divisors (983738204).

1305041212 is a wasteful number, since it uses less digits than its factorization.

1305041212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 708188 (or 708186 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 1305041212 is about 36125.3541435928. The cubic root of 1305041212 is about 1092.8018180016.

Adding to 1305041212 its reverse (2121405031), we get a palindrome (3426446243).

The spelling of 1305041212 in words is "one billion, three hundred five million, forty-one thousand, two hundred twelve".