1001231143303 has 16 divisors (see below), whose sum is σ = 1018203389280. Its totient is φ = 984401510400.

The previous prime is 1001231143261. The next prime is 1001231143307. The reversal of 1001231143303 is 3033411321001.

It is a cyclic number.

It is not a de Polignac number, because 1001231143303 - 2³³ = 992641208711 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1001231143307) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11459463 + ... + 11546503.

It is an arithmetic number, because the mean of its divisors is an integer number (63637711830).

Almost surely, 2^{1001231143303} is an apocalyptic number.

1001231143303 is a deficient number, since it is larger than the sum of its proper divisors (16972245977).

1001231143303 is an equidigital number, since it uses as much as digits as its factorization.

1001231143303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87858.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 1001231143303 its reverse (3033411321001), we get a palindrome (4034642464304).

The spelling of 1001231143303 in words is "one trillion, one billion, two hundred thirty-one million, one hundred forty-three thousand, three hundred three".