1300145321 has 2 divisors, whose sum is σ = 1300145322. Its totient is φ = 1300145320.

The previous prime is 1300145309. The next prime is 1300145323. The reversal of 1300145321 is 1235410031.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1230606400 + 69538921 = 35080^2 + 8339^2 .

It is an emirp because it is prime and its reverse (1235410031) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1300145321 - 2¹⁰ = 1300144297 is a prime.

Together with 1300145323, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 1300145293 and 1300145302.

It is not a weakly prime, because it can be changed into another prime (1300145323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 650072660 + 650072661.

It is an arithmetic number, because the mean of its divisors is an integer number (650072661).

Almost surely, 2^1300145321 is an apocalyptic number.

It is an amenable number.

1300145321 is a deficient number, since it is larger than the sum of its proper divisors (1).

1300145321 is an equidigital number, since it uses as much as digits as its factorization.

1300145321 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 1300145321 is about 36057.5279380048. The cubic root of 1300145321 is about 1091.4335488036.

Adding to 1300145321 its reverse (1235410031), we get a palindrome (2535555352).

The spelling of 1300145321 in words is "one billion, three hundred million, one hundred forty-five thousand, three hundred twenty-one".