1303140427 has 2 divisors, whose sum is σ = 1303140428. Its totient is φ = 1303140426.

The previous prime is 1303140409. The next prime is 1303140437. The reversal of 1303140427 is 7240413031.

It is a strong prime.

It is an emirp because it is prime and its reverse (7240413031) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1303140427 is a prime.

It is not a weakly prime, because it can be changed into another prime (1303140437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 651570213 + 651570214.

It is an arithmetic number, because the mean of its divisors is an integer number (651570214).

Almost surely, 2^1303140427 is an apocalyptic number.

1303140427 is a deficient number, since it is larger than the sum of its proper divisors (1).

1303140427 is an equidigital number, since it uses as much as digits as its factorization.

1303140427 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2016, while the sum is 25.

The square root of 1303140427 is about 36099.0363721804. The cubic root of 1303140427 is about 1092.2710070283.

Adding to 1303140427 its reverse (7240413031), we get a palindrome (8543553458).

The spelling of 1303140427 in words is "one billion, three hundred three million, one hundred forty thousand, four hundred twenty-seven".