1301318128 has 40 divisors (see below), whose sum is σ = 2781451440. Its totient is φ = 584855040.

The previous prime is 1301318111. The next prime is 1301318167. The reversal of 1301318128 is 8218131031.

It is a super-2 number, since 2×1301318128² = 3386857740522848768, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1301318096 and 1301318105.

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 7 ways as a sum of consecutive naturals, for example, 25875 + ... + 57202.

It is an arithmetic number, because the mean of its divisors is an integer number (69536286).

Almost surely, 2^1301318128 is an apocalyptic number.

It is an amenable number.

1301318128 is an abundant number, since it is smaller than the sum of its proper divisors (1480133312).

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

1301318128 is a wasteful number, since it uses less digits than its factorization.

1301318128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83185 (or 83179 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 28.

The square root of 1301318128 is about 36073.7872699832. The cubic root of 1301318128 is about 1091.7616291055.

Adding to 1301318128 its reverse (8218131031), we get a palindrome (9519449159).

The spelling of 1301318128 in words is "one billion, three hundred one million, three hundred eighteen thousand, one hundred twenty-eight".