400421000124003 has 32 divisors (see below), whose sum is σ = 564898446508032. Its totient is φ = 251883689356800.

The previous prime is 400421000123981. The next prime is 400421000124037. The reversal of 400421000124003 is 300421000124004.

It is not a de Polignac number, because 400421000124003 - 2⁶ = 400421000123939 is a prime.

It is not an unprimeable number, because it can be changed into a prime (400421000124053) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 25232850 + ... + 37914887.

It is an arithmetic number, because the mean of its divisors is an integer number (17653076453376).

Almost surely, 2^{400421000124003} is an apocalyptic number.

400421000124003 is a deficient number, since it is larger than the sum of its proper divisors (164477446384029).

400421000124003 is a wasteful number, since it uses less digits than its factorization.

400421000124003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63149475.

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 400421000124003 its reverse (300421000124004), we get a palindrome (700842000248007).

Subtracting from 400421000124003 its reverse (300421000124004), we obtain a palindrome (99999999999999).

The spelling of 400421000124003 in words is "four hundred trillion, four hundred twenty-one billion, one hundred twenty-four thousand, three".