1303423403 has 2 divisors, whose sum is σ = 1303423404. Its totient is φ = 1303423402.

The previous prime is 1303423391. The next prime is 1303423421. The reversal of 1303423403 is 3043243031.

It is a weak prime.

It is an emirp because it is prime and its reverse (3043243031) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1303423403 - 2¹⁴ = 1303407019 is a prime.

It is not a weakly prime, because it can be changed into another prime (1303423463) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 651711701 + 651711702.

It is an arithmetic number, because the mean of its divisors is an integer number (651711702).

Almost surely, 2^1303423403 is an apocalyptic number.

1303423403 is a deficient number, since it is larger than the sum of its proper divisors (1).

1303423403 is an equidigital number, since it uses as much as digits as its factorization.

1303423403 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2592, while the sum is 23.

The square root of 1303423403 is about 36102.9555992304. The cubic root of 1303423403 is about 1092.3500632589.

Adding to 1303423403 its reverse (3043243031), we get a palindrome (4346666434).

The spelling of 1303423403 in words is "one billion, three hundred three million, four hundred twenty-three thousand, four hundred three".