1303231001 has 4 divisors (see below), whose sum is σ = 1303305600. Its totient is φ = 1303156404.

The previous prime is 1303230997. The next prime is 1303231049. The reversal of 1303231001 is 1001323031.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 1303231001 - 2² = 1303230997 is a prime.

It is a super-2 number, since 2×1303231001² = 3396822083934924002, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1303231081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4580 + ... + 51258.

It is an arithmetic number, because the mean of its divisors is an integer number (325826400).

Almost surely, 2^1303231001 is an apocalyptic number.

It is an amenable number.

1303231001 is a deficient number, since it is larger than the sum of its proper divisors (74599).

1303231001 is an equidigital number, since it uses as much as digits as its factorization.

1303231001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74598.

The product of its (nonzero) digits is 54, while the sum is 14.

The square root of 1303231001 is about 36100.2908714043. The cubic root of 1303231001 is about 1092.2963123242.

Adding to 1303231001 its reverse (1001323031), we get a palindrome (2304554032).

The spelling of 1303231001 in words is "one billion, three hundred three million, two hundred thirty-one thousand, one".