2002423444023 has 4 divisors (see below), whose sum is σ = 2669897925368. Its totient is φ = 1334948962680.

The previous prime is 2002423444019. The next prime is 2002423444027. The reversal of 2002423444023 is 3204443242002.

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

It is an interprime number because it is at equal distance from previous prime (2002423444019) and next prime (2002423444027).

It is not a de Polignac number, because 2002423444023 - 2² = 2002423444019 is a prime.

It is a super-2 number, since 2×2002423444023² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2002423444027) 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, 333737240668 + ... + 333737240673.

It is an arithmetic number, because the mean of its divisors is an integer number (667474481342).

Almost surely, 2^{2002423444023} is an apocalyptic number.

2002423444023 is a deficient number, since it is larger than the sum of its proper divisors (667474481345).

2002423444023 is an equidigital number, since it uses as much as digits as its factorization.

2002423444023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 667474481344.

The product of its (nonzero) digits is 36864, while the sum is 30.

Adding to 2002423444023 its reverse (3204443242002), we get a palindrome (5206866686025).

The spelling of 2002423444023 in words is "two trillion, two billion, four hundred twenty-three million, four hundred forty-four thousand, twenty-three".