1300312133 has 4 divisors (see below), whose sum is σ = 1376801100. Its totient is φ = 1223823168.

The previous prime is 1300312103. The next prime is 1300312159. The reversal of 1300312133 is 3312130031.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3312130031 = 7 ⋅473161433.

It can be written as a sum of positive squares in 2 ways, for example, as 1215359044 + 84953089 = 34862^2 + 9217^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1300312133 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17), and also a Moran number because the ratio is a prime number: 76488949 = 1300312133 / (1 + 3 + 0 + 0 + 3 + 1 + 2 + 1 + 3 + 3).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1300312103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38244458 + ... + 38244491.

It is an arithmetic number, because the mean of its divisors is an integer number (344200275).

Almost surely, 2^1300312133 is an apocalyptic number.

It is an amenable number.

1300312133 is a deficient number, since it is larger than the sum of its proper divisors (76488967).

1300312133 is an equidigital number, since it uses as much as digits as its factorization.

1300312133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76488966.

The product of its (nonzero) digits is 162, while the sum is 17.

The square root of 1300312133 is about 36059.8410007587. The cubic root of 1300312133 is about 1091.4802247211.

Adding to 1300312133 its reverse (3312130031), we get a palindrome (4612442164).

The spelling of 1300312133 in words is "one billion, three hundred million, three hundred twelve thousand, one hundred thirty-three".