1001043220023 has 36 divisors (see below), whose sum is σ = 1816401669264. Its totient is φ = 520022448000.

The previous prime is 1001043219977. The next prime is 1001043220057. The reversal of 1001043220023 is 3200223401001.

1001043220023 is a `hidden beast` number, since 1 + 0 + 0 + 10 + 432 + 200 + 23 = 666.

It is not a de Polignac number, because 1001043220023 - 2²⁰ = 1001042171447 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1001043219978 and 1001043220005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1001043220063) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 65651778 + ... + 65667023.

It is an arithmetic number, because the mean of its divisors is an integer number (50455601924).

Almost surely, 2^{1001043220023} is an apocalyptic number.

1001043220023 is a deficient number, since it is larger than the sum of its proper divisors (815358449241).

1001043220023 is a wasteful number, since it uses less digits than its factorization.

1001043220023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131318836 (or 131318822 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 1001043220023 its reverse (3200223401001), we get a palindrome (4201266621024).

The spelling of 1001043220023 in words is "one trillion, one billion, forty-three million, two hundred twenty thousand, twenty-three".