1300640323 has 2 divisors, whose sum is σ = 1300640324. Its totient is φ = 1300640322.

The previous prime is 1300640219. The next prime is 1300640329. The reversal of 1300640323 is 3230460031.

It is a strong prime.

It is an emirp because it is prime and its reverse (3230460031) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1300640323 - 2¹³ = 1300632131 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1300640294 and 1300640303.

It is not a weakly prime, because it can be changed into another prime (1300640329) by changing a digit.

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 as a sum of consecutive naturals, namely, 650320161 + 650320162.

It is an arithmetic number, because the mean of its divisors is an integer number (650320162).

Almost surely, 2^1300640323 is an apocalyptic number.

1300640323 is a deficient number, since it is larger than the sum of its proper divisors (1).

1300640323 is an equidigital number, since it uses as much as digits as its factorization.

1300640323 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 22.

The square root of 1300640323 is about 36064.3913438172. The cubic root of 1300640323 is about 1091.5720444089.

The spelling of 1300640323 in words is "one billion, three hundred million, six hundred forty thousand, three hundred twenty-three".