422323143461 has 2 divisors, whose sum is σ = 422323143462. Its totient is φ = 422323143460.

The previous prime is 422323143439. The next prime is 422323143497. The reversal of 422323143461 is 164341323224.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 411546627361 + 10776516100 = 641519^2 + 103810^2 .

It is a cyclic number.

It is not a de Polignac number, because 422323143461 - 2²⁶ = 422256034597 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (422323143401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211161571730 + 211161571731.

It is an arithmetic number, because the mean of its divisors is an integer number (211161571731).

Almost surely, 2^422323143461 is an apocalyptic number.

It is an amenable number.

422323143461 is a deficient number, since it is larger than the sum of its proper divisors (1).

422323143461 is an equidigital number, since it uses as much as digits as its factorization.

422323143461 is an evil number, because the sum of its binary digits is even.

The product of its digits is 82944, while the sum is 35.

Adding to 422323143461 its reverse (164341323224), we get a palindrome (586664466685).

The spelling of 422323143461 in words is "four hundred twenty-two billion, three hundred twenty-three million, one hundred forty-three thousand, four hundred sixty-one".