1001231303103 has 12 divisors (see below), whose sum is σ = 1446294384600. Its totient is φ = 667454585616.

The previous prime is 1001231302993. The next prime is 1001231303113. The reversal of 1001231303103 is 3013031321001.

It is a happy number.

1001231303103 is a `hidden beast` number, since 100 + 123 + 130 + 310 + 3 = 666.

1001231303103 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1001231303103 - 2¹³ = 1001231294911 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1001231303113) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2552653 + ... + 2918646.

It is an arithmetic number, because the mean of its divisors is an integer number (120524532050).

Almost surely, 2^{1001231303103} is an apocalyptic number.

1001231303103 is a deficient number, since it is larger than the sum of its proper divisors (445063081497).

1001231303103 is a wasteful number, since it uses less digits than its factorization.

1001231303103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5491638 (or 5491635 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 18.

Adding to 1001231303103 its reverse (3013031321001), we get a palindrome (4014262624104).

The spelling of 1001231303103 in words is "one trillion, one billion, two hundred thirty-one million, three hundred three thousand, one hundred three".