1312203568 has 20 divisors (see below), whose sum is σ = 2737963648. Its totient is φ = 605632320.

The previous prime is 1312203559. The next prime is 1312203587. The reversal of 1312203568 is 8653022131.

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, 3154128 + ... + 3154543.

Almost surely, 2^1312203568 is an apocalyptic number.

It is an amenable number.

1312203568 is an abundant number, since it is smaller than the sum of its proper divisors (1425760080).

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

1312203568 is a wasteful number, since it uses less digits than its factorization.

1312203568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6308692 (or 6308686 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 1312203568 is about 36224.3504841702. The cubic root of 1312203568 is about 1094.7973514884.

Adding to 1312203568 its reverse (8653022131), we get a palindrome (9965225699).

The spelling of 1312203568 in words is "one billion, three hundred twelve million, two hundred three thousand, five hundred sixty-eight".