423423125455441 has 2 divisors, whose sum is σ = 423423125455442. Its totient is φ = 423423125455440.

The previous prime is 423423125455423. The next prime is 423423125455487. The reversal of 423423125455441 is 144554521324324.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 267008181948225 + 156414943507216 = 16340385^2 + 12506596^2 .

It is a cyclic number.

It is not a de Polignac number, because 423423125455441 - 2³¹ = 423420977971793 is a prime.

It is not a weakly prime, because it can be changed into another prime (423423125450441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211711562727720 + 211711562727721.

It is an arithmetic number, because the mean of its divisors is an integer number (211711562727721).

Almost surely, 2^{423423125455441} is an apocalyptic number.

It is an amenable number.

423423125455441 is a deficient number, since it is larger than the sum of its proper divisors (1).

423423125455441 is an equidigital number, since it uses as much as digits as its factorization.

423423125455441 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9216000, while the sum is 49.

Adding to 423423125455441 its reverse (144554521324324), we get a palindrome (567977646779765).

The spelling of 423423125455441 in words is "four hundred twenty-three trillion, four hundred twenty-three billion, one hundred twenty-five million, four hundred fifty-five thousand, four hundred forty-one".