1003231213101 has 12 divisors (see below), whose sum is σ = 1560581887228. Its totient is φ = 617373054144.

The previous prime is 1003231213097. The next prime is 1003231213109. The reversal of 1003231213101 is 1013121323001.

1003231213101 is a `hidden beast` number, since 10 + 0 + 32 + 312 + 1 + 310 + 1 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 329602292100 + 673628921001 = 574110^2 + 820749^2 .

It is not a de Polignac number, because 1003231213101 - 2² = 1003231213097 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1003231213109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4287312760 + ... + 4287312993.

Almost surely, 2^{1003231213101} is an apocalyptic number.

It is an amenable number.

1003231213101 is a deficient number, since it is larger than the sum of its proper divisors (557350674127).

1003231213101 is a wasteful number, since it uses less digits than its factorization.

1003231213101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8574625772 (or 8574625769 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 1003231213101 its reverse (1013121323001), we get a palindrome (2016352536102).

The spelling of 1003231213101 in words is "one trillion, three billion, two hundred thirty-one million, two hundred thirteen thousand, one hundred one".