404213322431 has 2 divisors, whose sum is σ = 404213322432. Its totient is φ = 404213322430.

The previous prime is 404213322419. The next prime is 404213322439. The reversal of 404213322431 is 134223312404.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 404213322431 - 2²⁶ = 404146213567 is a prime.

It is a super-2 number, since 2×404213322431² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 404213322394 and 404213322403.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (404213322439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 202106661215 + 202106661216.

It is an arithmetic number, because the mean of its divisors is an integer number (202106661216).

Almost surely, 2^404213322431 is an apocalyptic number.

404213322431 is a deficient number, since it is larger than the sum of its proper divisors (1).

404213322431 is an equidigital number, since it uses as much as digits as its factorization.

404213322431 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13824, while the sum is 29.

Adding to 404213322431 its reverse (134223312404), we get a palindrome (538436634835).

The spelling of 404213322431 in words is "four hundred four billion, two hundred thirteen million, three hundred twenty-two thousand, four hundred thirty-one".