1303663423 has 4 divisors (see below), whose sum is σ = 1303840368. Its totient is φ = 1303486480.

The previous prime is 1303663381. The next prime is 1303663441. The reversal of 1303663423 is 3243663031.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3243663031 = 7 ⋅463380433.

It is a cyclic number.

It is not a de Polignac number, because 1303663423 - 2⁹ = 1303662911 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1303643423) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 76918 + ... + 92323.

It is an arithmetic number, because the mean of its divisors is an integer number (325960092).

Almost surely, 2^1303663423 is an apocalyptic number.

1303663423 is a deficient number, since it is larger than the sum of its proper divisors (176945).

1303663423 is an equidigital number, since it uses as much as digits as its factorization.

1303663423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176944.

The product of its (nonzero) digits is 23328, while the sum is 31.

The square root of 1303663423 is about 36106.2795507928. The cubic root of 1303663423 is about 1092.4171097177.

The spelling of 1303663423 in words is "one billion, three hundred three million, six hundred sixty-three thousand, four hundred twenty-three".