23404044124421 has 4 divisors (see below), whose sum is σ = 23428915585644. Its totient is φ = 23379172663200.

The previous prime is 23404044124397. The next prime is 23404044124423. The reversal of 23404044124421 is 12442144040432.

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

It can be written as a sum of positive squares in 2 ways, for example, as 16927217632900 + 6476826491521 = 4114270^2 + 2544961^2 .

It is a cyclic number.

It is not a de Polignac number, because 23404044124421 - 2²⁶ = 23403977015557 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 (23404044124423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12435729200 + ... + 12435731081.

It is an arithmetic number, because the mean of its divisors is an integer number (5857228896411).

Almost surely, 2^{23404044124421} is an apocalyptic number.

It is an amenable number.

23404044124421 is a deficient number, since it is larger than the sum of its proper divisors (24871461223).

23404044124421 is an equidigital number, since it uses as much as digits as its factorization.

23404044124421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24871461222.

The product of its (nonzero) digits is 98304, while the sum is 35.

Adding to 23404044124421 its reverse (12442144040432), we get a palindrome (35846188164853).

The spelling of 23404044124421 in words is "twenty-three trillion, four hundred four billion, forty-four million, one hundred twenty-four thousand, four hundred twenty-one".