1004042423423 has 4 divisors (see below), whose sum is σ = 1081276456008. Its totient is φ = 926808390840.

The previous prime is 1004042423333. The next prime is 1004042423431. The reversal of 1004042423423 is 3243242404001.

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

It is a cyclic number.

It is not a de Polignac number, because 1004042423423 - 2¹⁶ = 1004042357887 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 (1004042023423) 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, 38617016273 + ... + 38617016298.

It is an arithmetic number, because the mean of its divisors is an integer number (270319114002).

Almost surely, 2^{1004042423423} is an apocalyptic number.

1004042423423 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1004042423423 is a deficient number, since it is larger than the sum of its proper divisors (77234032585).

1004042423423 is an equidigital number, since it uses as much as digits as its factorization.

1004042423423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77234032584.

The product of its (nonzero) digits is 18432, while the sum is 29.

Adding to 1004042423423 its reverse (3243242404001), we get a palindrome (4247284827424).

The spelling of 1004042423423 in words is "one trillion, four billion, forty-two million, four hundred twenty-three thousand, four hundred twenty-three".