424131443261 has 2 divisors, whose sum is σ = 424131443262. Its totient is φ = 424131443260.

The previous prime is 424131443231. The next prime is 424131443311. The reversal of 424131443261 is 162344131424.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 268002936100 + 156128507161 = 517690^2 + 395131^2 .

It is a cyclic number.

It is not a de Polignac number, because 424131443261 - 2²² = 424127248957 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (424131443231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 212065721630 + 212065721631.

It is an arithmetic number, because the mean of its divisors is an integer number (212065721631).

Almost surely, 2^424131443261 is an apocalyptic number.

It is an amenable number.

424131443261 is a deficient number, since it is larger than the sum of its proper divisors (1).

424131443261 is an equidigital number, since it uses as much as digits as its factorization.

424131443261 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 55296, while the sum is 35.

Adding to 424131443261 its reverse (162344131424), we get a palindrome (586475574685).

The spelling of 424131443261 in words is "four hundred twenty-four billion, one hundred thirty-one million, four hundred forty-three thousand, two hundred sixty-one".