400011231424471 has 2 divisors, whose sum is σ = 400011231424472. Its totient is φ = 400011231424470.

The previous prime is 400011231424447. The next prime is 400011231424481. The reversal of 400011231424471 is 174424132110004.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-400011231424471 is a prime.

It is a super-3 number, since 3×400011231424471³ (a number of 45 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (400011231424481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200005615712235 + 200005615712236.

It is an arithmetic number, because the mean of its divisors is an integer number (200005615712236).

Almost surely, 2^{400011231424471} is an apocalyptic number.

400011231424471 is a deficient number, since it is larger than the sum of its proper divisors (1).

400011231424471 is an equidigital number, since it uses as much as digits as its factorization.

400011231424471 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 21504, while the sum is 34.

Adding to 400011231424471 its reverse (174424132110004), we get a palindrome (574435363534475).

The spelling of 400011231424471 in words is "four hundred trillion, eleven billion, two hundred thirty-one million, four hundred twenty-four thousand, four hundred seventy-one".