421103140400403 has 24 divisors (see below), whose sum is σ = 608325191413056. Its totient is φ = 280705382622000.

The previous prime is 421103140400357. The next prime is 421103140400407. The reversal of 421103140400403 is 304004041301124.

421103140400403 is a `hidden beast` number, since 4 + 2 + 110 + 3 + 140 + 4 + 0 + 0 + 403 = 666.

It is not a de Polignac number, because 421103140400403 - 2⁶ = 421103140400339 is a prime.

It is not an unprimeable number, because it can be changed into a prime (421103140400407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4402448128 + ... + 4402543778.

It is an arithmetic number, because the mean of its divisors is an integer number (25346882975544).

Almost surely, 2^{421103140400403} is an apocalyptic number.

421103140400403 is a deficient number, since it is larger than the sum of its proper divisors (187222051012653).

421103140400403 is a wasteful number, since it uses less digits than its factorization.

421103140400403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142895 (or 142892 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

Adding to 421103140400403 its reverse (304004041301124), we get a palindrome (725107181701527).

The spelling of 421103140400403 in words is "four hundred twenty-one trillion, one hundred three billion, one hundred forty million, four hundred thousand, four hundred three".