421313231324243 has 16 divisors (see below), whose sum is σ = 431655226153536. Its totient is φ = 410974388098560.

The previous prime is 421313231324203. The next prime is 421313231324281. The reversal of 421313231324243 is 342423132313124.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-421313231324243 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 421313231324197 and 421313231324206.

It is not an unprimeable number, because it can be changed into a prime (421313231324203) 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, 11150848730 + ... + 11150886512.

It is an arithmetic number, because the mean of its divisors is an integer number (26978451634596).

Almost surely, 2^{421313231324243} is an apocalyptic number.

421313231324243 is a deficient number, since it is larger than the sum of its proper divisors (10341994829293).

421313231324243 is a wasteful number, since it uses less digits than its factorization.

421313231324243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72254.

The product of its digits is 248832, while the sum is 38.

Adding to 421313231324243 its reverse (342423132313124), we get a palindrome (763736363637367).

The spelling of 421313231324243 in words is "four hundred twenty-one trillion, three hundred thirteen billion, two hundred thirty-one million, three hundred twenty-four thousand, two hundred forty-three".