1301813323 has 2 divisors, whose sum is σ = 1301813324. Its totient is φ = 1301813322.

The previous prime is 1301813321. The next prime is 1301813333. The reversal of 1301813323 is 3233181031.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1301813323 - 2¹ = 1301813321 is a prime.

Together with 1301813321, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1301813321) 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, 650906661 + 650906662.

It is an arithmetic number, because the mean of its divisors is an integer number (650906662).

Almost surely, 2^1301813323 is an apocalyptic number.

1301813323 is a deficient number, since it is larger than the sum of its proper divisors (1).

1301813323 is an equidigital number, since it uses as much as digits as its factorization.

1301813323 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 25.

The square root of 1301813323 is about 36080.6502574441. The cubic root of 1301813323 is about 1091.9000954616.

Adding to 1301813323 its reverse (3233181031), we get a palindrome (4534994354).

The spelling of 1301813323 in words is "one billion, three hundred one million, eight hundred thirteen thousand, three hundred twenty-three".