1001223223023 has 4 divisors (see below), whose sum is σ = 1334964297368. Its totient is φ = 667482148680.

The previous prime is 1001223223001. The next prime is 1001223223031. The reversal of 1001223223023 is 3203223221001.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 1001223223023 - 2¹² = 1001223218927 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1001223223423) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 166870537168 + ... + 166870537173.

It is an arithmetic number, because the mean of its divisors is an integer number (333741074342).

Almost surely, 2^{1001223223023} is an apocalyptic number.

1001223223023 is a deficient number, since it is larger than the sum of its proper divisors (333741074345).

1001223223023 is an equidigital number, since it uses as much as digits as its factorization.

1001223223023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 333741074344.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 1001223223023 its reverse (3203223221001), we get a palindrome (4204446444024).

The spelling of 1001223223023 in words is "one trillion, one billion, two hundred twenty-three million, two hundred twenty-three thousand, twenty-three".