1303121003 has 8 divisors (see below), whose sum is σ = 1350956880. Its totient is φ = 1255478560.

The previous prime is 1303120997. The next prime is 1303121011. The reversal of 1303121003 is 3001213031.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1303121003 - 2⁶ = 1303120939 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1303121203) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34568 + ... + 61653.

It is an arithmetic number, because the mean of its divisors is an integer number (168869610).

Almost surely, 2^1303121003 is an apocalyptic number.

1303121003 is a deficient number, since it is larger than the sum of its proper divisors (47835877).

1303121003 is an equidigital number, since it uses as much as digits as its factorization.

1303121003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96717.

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

The square root of 1303121003 is about 36098.7673335254. The cubic root of 1303121003 is about 1092.2655800415.

Adding to 1303121003 its reverse (3001213031), we get a palindrome (4304334034).

The spelling of 1303121003 in words is "one billion, three hundred three million, one hundred twenty-one thousand, three".