1313061868 has 12 divisors (see below), whose sum is σ = 2298546432. Its totient is φ = 656334320.

The previous prime is 1313061857. The next prime is 1313061901. The reversal of 1313061868 is 8681603131.

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, 33580 + ... + 61267.

It is an arithmetic number, because the mean of its divisors is an integer number (191545536).

Almost surely, 2^1313061868 is an apocalyptic number.

It is an amenable number.

1313061868 is a deficient number, since it is larger than the sum of its proper divisors (985484564).

1313061868 is a wasteful number, since it uses less digits than its factorization.

1313061868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98312 (or 98310 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 37.

The square root of 1313061868 is about 36236.1955508577. The cubic root of 1313061868 is about 1095.0359983439.

Adding to 1313061868 its reverse (8681603131), we get a palindrome (9994664999).

The spelling of 1313061868 in words is "one billion, three hundred thirteen million, sixty-one thousand, eight hundred sixty-eight".