1003231313203 has 16 divisors (see below), whose sum is σ = 1218194907840. Its totient is φ = 809329435008.

The previous prime is 1003231313191. The next prime is 1003231313209. The reversal of 1003231313203 is 3023131323001.

It is not a de Polignac number, because 1003231313203 - 2³³ = 994641378611 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1003231313209) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14551276 + ... + 14620057.

It is an arithmetic number, because the mean of its divisors is an integer number (76137181740).

Almost surely, 2^{1003231313203} is an apocalyptic number.

1003231313203 is a deficient number, since it is larger than the sum of its proper divisors (214963594637).

1003231313203 is an frugal number, since it uses more digits than its factorization.

1003231313203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29171391 (or 29171357 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 22.

Adding to 1003231313203 its reverse (3023131323001), we get a palindrome (4026362636204).

The spelling of 1003231313203 in words is "one trillion, three billion, two hundred thirty-one million, three hundred thirteen thousand, two hundred three".