1300003963 has 2 divisors, whose sum is σ = 1300003964. Its totient is φ = 1300003962.

The previous prime is 1300003951. The next prime is 1300004047. The reversal of 1300003963 is 3693000031.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1300003963 is a prime.

It is not a weakly prime, because it can be changed into another prime (1300003063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 650001981 + 650001982.

It is an arithmetic number, because the mean of its divisors is an integer number (650001982).

Almost surely, 2^1300003963 is an apocalyptic number.

1300003963 is a deficient number, since it is larger than the sum of its proper divisors (1).

1300003963 is an equidigital number, since it uses as much as digits as its factorization.

1300003963 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1458, while the sum is 25.

The square root of 1300003963 is about 36055.5677115200. The cubic root of 1300003963 is about 1091.3939920831.

Adding to 1300003963 its reverse (3693000031), we get a palindrome (4993003994).

The spelling of 1300003963 in words is "one billion, three hundred million, three thousand, nine hundred sixty-three".