421223303322123 has 16 divisors (see below), whose sum is σ = 565636697485440. Its totient is φ = 278816137213824.

The previous prime is 421223303322109. The next prime is 421223303322191. The reversal of 421223303322123 is 321223303322124.

It is a de Polignac number, because none of the positive numbers 2^k-421223303322123 is a prime.

It is not an unprimeable number, because it can be changed into a prime (421223303324123) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 426363561 + ... + 427350362.

It is an arithmetic number, because the mean of its divisors is an integer number (35352293592840).

Almost surely, 2^{421223303322123} is an apocalyptic number.

421223303322123 is a deficient number, since it is larger than the sum of its proper divisors (144413394163317).

421223303322123 is a wasteful number, since it uses less digits than its factorization.

421223303322123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 853715098.

The product of its (nonzero) digits is 62208, while the sum is 33.

Adding to 421223303322123 its reverse (321223303322124), we get a palindrome (742446606644247).

Subtracting from 421223303322123 its reverse (321223303322124), we obtain a palindrome (99999999999999).

The spelling of 421223303322123 in words is "four hundred twenty-one trillion, two hundred twenty-three billion, three hundred three million, three hundred twenty-two thousand, one hundred twenty-three".