1313203312 has 20 divisors (see below), whose sum is σ = 2598467616. Its totient is φ = 642631040.

The previous prime is 1313203289. The next prime is 1313203337. The reversal of 1313203312 is 2133023131.

It is a self number, because there is not a number n which added to its sum of digits gives 1313203312.

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, 872389 + ... + 873892.

Almost surely, 2^1313203312 is an apocalyptic number.

It is an amenable number.

1313203312 is a deficient number, since it is larger than the sum of its proper divisors (1285264304).

1313203312 is a wasteful number, since it uses less digits than its factorization.

1313203312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1746336 (or 1746330 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 19.

The square root of 1313203312 is about 36238.1471932548. The cubic root of 1313203312 is about 1095.0753162960.

Adding to 1313203312 its reverse (2133023131), we get a palindrome (3446226443).

The spelling of 1313203312 in words is "one billion, three hundred thirteen million, two hundred three thousand, three hundred twelve".