424431221124247 has 2 divisors, whose sum is σ = 424431221124248. Its totient is φ = 424431221124246.

The previous prime is 424431221124133. The next prime is 424431221124263. The reversal of 424431221124247 is 742421122134424.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-424431221124247 is a prime.

It is a super-2 number, since 2×424431221124247² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (424431221124047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 212215610562123 + 212215610562124.

It is an arithmetic number, because the mean of its divisors is an integer number (212215610562124).

Almost surely, 2^{424431221124247} is an apocalyptic number.

424431221124247 is a deficient number, since it is larger than the sum of its proper divisors (1).

424431221124247 is an equidigital number, since it uses as much as digits as its factorization.

424431221124247 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 688128, while the sum is 43.

The spelling of 424431221124247 in words is "four hundred twenty-four trillion, four hundred thirty-one billion, two hundred twenty-one million, one hundred twenty-four thousand, two hundred forty-seven".