404524144351123 has 4 divisors (see below), whose sum is σ = 404902557957760. Its totient is φ = 404145730744488.

The previous prime is 404524144351091. The next prime is 404524144351147. The reversal of 404524144351123 is 321153441425404.

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 404524144351123 - 2⁵ = 404524144351091 is a prime.

It is a super-2 number, since 2×404524144351123² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 404524144351123.

It is not an unprimeable number, because it can be changed into a prime (404524144351163) 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, 189206801715 + ... + 189206803852.

It is an arithmetic number, because the mean of its divisors is an integer number (101225639489440).

Almost surely, 2^{404524144351123} is an apocalyptic number.

404524144351123 is a deficient number, since it is larger than the sum of its proper divisors (378413606637).

404524144351123 is a wasteful number, since it uses less digits than its factorization.

404524144351123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 378413606636.

The product of its (nonzero) digits is 921600, while the sum is 43.

Adding to 404524144351123 its reverse (321153441425404), we get a palindrome (725677585776527).

The spelling of 404524144351123 in words is "four hundred four trillion, five hundred twenty-four billion, one hundred forty-four million, three hundred fifty-one thousand, one hundred twenty-three".