421431434224223 has 8 divisors (see below), whose sum is σ = 427067384486400. Its totient is φ = 415832684954328.

The previous prime is 421431434224181. The next prime is 421431434224237. The reversal of 421431434224223 is 322422434134124.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 421431434224223 - 2¹⁸ = 421431433962079 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421431434124223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9300225263 + ... + 9300270576.

It is an arithmetic number, because the mean of its divisors is an integer number (53383423060800).

Almost surely, 2^{421431434224223} is an apocalyptic number.

421431434224223 is a deficient number, since it is larger than the sum of its proper divisors (5635950262177).

421431434224223 is a wasteful number, since it uses less digits than its factorization.

421431434224223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18600496141.

The product of its digits is 884736, while the sum is 41.

Adding to 421431434224223 its reverse (322422434134124), we get a palindrome (743853868358347).

Subtracting from 421431434224223 its reverse (322422434134124), we obtain a palindrome (99009000090099).

The spelling of 421431434224223 in words is "four hundred twenty-one trillion, four hundred thirty-one billion, four hundred thirty-four million, two hundred twenty-four thousand, two hundred twenty-three".