42430044401 has 2 divisors, whose sum is σ = 42430044402. Its totient is φ = 42430044400.

The previous prime is 42430044353. The next prime is 42430044403. The reversal of 42430044401 is 10444003424.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 25288950625 + 17141093776 = 159025^2 + 130924^2 .

It is a cyclic number.

It is not a de Polignac number, because 42430044401 - 2³⁴ = 25250175217 is a prime.

Together with 42430044403, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (42430044403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21215022200 + 21215022201.

It is an arithmetic number, because the mean of its divisors is an integer number (21215022201).

Almost surely, 2^42430044401 is an apocalyptic number.

It is an amenable number.

42430044401 is a deficient number, since it is larger than the sum of its proper divisors (1).

42430044401 is an equidigital number, since it uses as much as digits as its factorization.

42430044401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6144, while the sum is 26.

Adding to 42430044401 its reverse (10444003424), we get a palindrome (52874047825).

The spelling of 42430044401 in words is "forty-two billion, four hundred thirty million, forty-four thousand, four hundred one".