1303230143 has 4 divisors (see below), whose sum is σ = 1303306128. Its totient is φ = 1303154160.

The previous prime is 1303230127. The next prime is 1303230157. The reversal of 1303230143 is 3410323031.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 3410323031 = 1123 ⋅3036797.

It is a cyclic number.

It is not a de Polignac number, because 1303230143 - 2⁴ = 1303230127 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 (1303230343) 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, 1238 + ... + 51068.

It is an arithmetic number, because the mean of its divisors is an integer number (325826532).

Almost surely, 2^1303230143 is an apocalyptic number.

1303230143 is a deficient number, since it is larger than the sum of its proper divisors (75985).

1303230143 is an equidigital number, since it uses as much as digits as its factorization.

1303230143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75984.

The product of its (nonzero) digits is 648, while the sum is 20.

The square root of 1303230143 is about 36100.2789878416. The cubic root of 1303230143 is about 1092.2960726147.

Adding to 1303230143 its reverse (3410323031), we get a palindrome (4713553174).

The spelling of 1303230143 in words is "one billion, three hundred three million, two hundred thirty thousand, one hundred forty-three".