423207101 has 2 divisors, whose sum is σ = 423207102. Its totient is φ = 423207100.

The previous prime is 423207097. The next prime is 423207137. The reversal of 423207101 is 101702324.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 312936100 + 110271001 = 17690^2 + 10501^2 .

It is a cyclic number.

It is not a de Polignac number, because 423207101 - 2² = 423207097 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (423207181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211603550 + 211603551.

It is an arithmetic number, because the mean of its divisors is an integer number (211603551).

Almost surely, 2^423207101 is an apocalyptic number.

It is an amenable number.

423207101 is a deficient number, since it is larger than the sum of its proper divisors (1).

423207101 is an equidigital number, since it uses as much as digits as its factorization.

423207101 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 336, while the sum is 20.

The square root of 423207101 is about 20571.9979826948. The cubic root of 423207101 is about 750.7885637841.

Adding to 423207101 its reverse (101702324), we get a palindrome (524909425).

The spelling of 423207101 in words is "four hundred twenty-three million, two hundred seven thousand, one hundred one".