421103431444422 has 16 divisors (see below), whose sum is σ = 891748443058992. Its totient is φ = 132110880453120.

The previous prime is 421103431444391. The next prime is 421103431444483. The reversal of 421103431444422 is 224444134301124.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 2064232506979 + ... + 2064232507182.

It is an arithmetic number, because the mean of its divisors is an integer number (55734277691187).

Almost surely, 2^{421103431444422} is an apocalyptic number.

421103431444422 is an abundant number, since it is smaller than the sum of its proper divisors (470645011614570).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

421103431444422 is a wasteful number, since it uses less digits than its factorization.

421103431444422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4128465014183.

The product of its (nonzero) digits is 294912, while the sum is 39.

Adding to 421103431444422 its reverse (224444134301124), we get a palindrome (645547565745546).

The spelling of 421103431444422 in words is "four hundred twenty-one trillion, one hundred three billion, four hundred thirty-one million, four hundred forty-four thousand, four hundred twenty-two".