1301320903 has 2 divisors, whose sum is σ = 1301320904. Its totient is φ = 1301320902.

The previous prime is 1301320901. The next prime is 1301320907. The reversal of 1301320903 is 3090231031.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1301320903 - 2¹ = 1301320901 is a prime.

Together with 1301320901, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1301320901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 650660451 + 650660452.

It is an arithmetic number, because the mean of its divisors is an integer number (650660452).

Almost surely, 2^1301320903 is an apocalyptic number.

1301320903 is a deficient number, since it is larger than the sum of its proper divisors (1).

1301320903 is an equidigital number, since it uses as much as digits as its factorization.

1301320903 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 486, while the sum is 22.

The square root of 1301320903 is about 36073.8257327941. The cubic root of 1301320903 is about 1091.7624051485.

Adding to 1301320903 its reverse (3090231031), we get a palindrome (4391551934).

The spelling of 1301320903 in words is "one billion, three hundred one million, three hundred twenty thousand, nine hundred three".