42421104223 has 2 divisors, whose sum is σ = 42421104224. Its totient is φ = 42421104222.

The previous prime is 42421104221. The next prime is 42421104277. The reversal of 42421104223 is 32240112424.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42421104223 - 2¹ = 42421104221 is a prime.

Together with 42421104221, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42421104221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21210552111 + 21210552112.

It is an arithmetic number, because the mean of its divisors is an integer number (21210552112).

Almost surely, 2^42421104223 is an apocalyptic number.

42421104223 is a deficient number, since it is larger than the sum of its proper divisors (1).

42421104223 is an equidigital number, since it uses as much as digits as its factorization.

42421104223 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3072, while the sum is 25.

Adding to 42421104223 its reverse (32240112424), we get a palindrome (74661216647).

The spelling of 42421104223 in words is "forty-two billion, four hundred twenty-one million, one hundred four thousand, two hundred twenty-three".