422003231173 has 2 divisors, whose sum is σ = 422003231174. Its totient is φ = 422003231172.

The previous prime is 422003231159. The next prime is 422003231249. The reversal of 422003231173 is 371132300224.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 287062351524 + 134940879649 = 535782^2 + 367343^2 .

It is a cyclic number.

It is not a de Polignac number, because 422003231173 - 2⁹ = 422003230661 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (422003231773) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211001615586 + 211001615587.

It is an arithmetic number, because the mean of its divisors is an integer number (211001615587).

Almost surely, 2^422003231173 is an apocalyptic number.

It is an amenable number.

422003231173 is a deficient number, since it is larger than the sum of its proper divisors (1).

422003231173 is an equidigital number, since it uses as much as digits as its factorization.

422003231173 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6048, while the sum is 28.

Adding to 422003231173 its reverse (371132300224), we get a palindrome (793135531397).

The spelling of 422003231173 in words is "four hundred twenty-two billion, three million, two hundred thirty-one thousand, one hundred seventy-three".