404023311030431 has 2 divisors, whose sum is σ = 404023311030432. Its totient is φ = 404023311030430.

The previous prime is 404023311030407. The next prime is 404023311030433. The reversal of 404023311030431 is 134030113320404.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 404023311030431 - 2³⁴ = 404006131161247 is a prime.

It is a super-2 number, since 2×404023311030431² (a number of 30 digits) contains 22 as substring.

Together with 404023311030433, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 404023311030394 and 404023311030403.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (404023311030433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 202011655515215 + 202011655515216.

It is an arithmetic number, because the mean of its divisors is an integer number (202011655515216).

Almost surely, 2^{404023311030431} is an apocalyptic number.

404023311030431 is a deficient number, since it is larger than the sum of its proper divisors (1).

404023311030431 is an equidigital number, since it uses as much as digits as its factorization.

404023311030431 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10368, while the sum is 29.

Adding to 404023311030431 its reverse (134030113320404), we get a palindrome (538053424350835).

The spelling of 404023311030431 in words is "four hundred four trillion, twenty-three billion, three hundred eleven million, thirty thousand, four hundred thirty-one".