404342024321 has 2 divisors, whose sum is σ = 404342024322. Its totient is φ = 404342024320.

The previous prime is 404342024297. The next prime is 404342024341. The reversal of 404342024321 is 123420243404.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 274047015025 + 130295009296 = 523495^2 + 360964^2 .

It is a cyclic number.

It is not a de Polignac number, because 404342024321 - 2³⁰ = 403268282497 is a prime.

It is a super-2 number, since 2×404342024321² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (404342024341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 202171012160 + 202171012161.

It is an arithmetic number, because the mean of its divisors is an integer number (202171012161).

Almost surely, 2^404342024321 is an apocalyptic number.

It is an amenable number.

404342024321 is a deficient number, since it is larger than the sum of its proper divisors (1).

404342024321 is an equidigital number, since it uses as much as digits as its factorization.

404342024321 is an evil number, because the sum of its binary digits is even.

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

Adding to 404342024321 its reverse (123420243404), we get a palindrome (527762267725).

The spelling of 404342024321 in words is "four hundred four billion, three hundred forty-two million, twenty-four thousand, three hundred twenty-one".