400011231424432 has 20 divisors (see below), whose sum is σ = 775238187067056. Its totient is φ = 199949763794240.

The previous prime is 400011231424423. The next prime is 400011231424447. The reversal of 400011231424432 is 234424132110004.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 400011231424394 and 400011231424403.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3490685788 + ... + 3490800379.

Almost surely, 2^{400011231424432} is an apocalyptic number.

It is an amenable number.

400011231424432 is a deficient number, since it is larger than the sum of its proper divisors (375226955642624).

400011231424432 is a wasteful number, since it uses less digits than its factorization.

400011231424432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6981489756 (or 6981489750 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 31.

Adding to 400011231424432 its reverse (234424132110004), we get a palindrome (634435363534436).

The spelling of 400011231424432 in words is "four hundred trillion, eleven billion, two hundred thirty-one million, four hundred twenty-four thousand, four hundred thirty-two".