1313212312 has 16 divisors (see below), whose sum is σ = 2467215000. Its totient is φ = 655288320.

The previous prime is 1313212291. The next prime is 1313212367. The reversal of 1313212312 is 2132123131.

It is a self number, because there is not a number n which added to its sum of digits gives 1313212312.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 160489 + ... + 168472.

Almost surely, 2^1313212312 is an apocalyptic number.

It is an amenable number.

1313212312 is a deficient number, since it is larger than the sum of its proper divisors (1154002688).

1313212312 is a wasteful number, since it uses less digits than its factorization.

1313212312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 329466 (or 329462 counting only the distinct ones).

The product of its digits is 216, while the sum is 19.

The square root of 1313212312 is about 36238.2713715762. The cubic root of 1313212312 is about 1095.0778179790.

Adding to 1313212312 its reverse (2132123131), we get a palindrome (3445335443).

It can be divided in two parts, 1 and 313212312, that added together give a palindrome (313212313).

The spelling of 1313212312 in words is "one billion, three hundred thirteen million, two hundred twelve thousand, three hundred twelve".