423130440373 has 2 divisors, whose sum is σ = 423130440374. Its totient is φ = 423130440372.

The previous prime is 423130440349. The next prime is 423130440431. The reversal of 423130440373 is 373044031324.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 405319402609 + 17811037764 = 636647^2 + 133458^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-423130440373 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (423130447373) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211565220186 + 211565220187.

It is an arithmetic number, because the mean of its divisors is an integer number (211565220187).

Almost surely, 2^423130440373 is an apocalyptic number.

It is an amenable number.

423130440373 is a deficient number, since it is larger than the sum of its proper divisors (1).

423130440373 is an equidigital number, since it uses as much as digits as its factorization.

423130440373 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72576, while the sum is 34.

Adding to 423130440373 its reverse (373044031324), we get a palindrome (796174471697).

The spelling of 423130440373 in words is "four hundred twenty-three billion, one hundred thirty million, four hundred forty thousand, three hundred seventy-three".