423423132542145 has 96 divisors (see below), whose sum is σ = 755868512783904. Its totient is φ = 219110834073600.

The previous prime is 423423132542141. The next prime is 423423132542167. The reversal of 423423132542145 is 541245231324324.

423423132542145 is a `hidden beast` number, since 4 + 2 + 3 + 4 + 2 + 31 + 32 + 542 + 1 + 45 = 666.

It can be written as a sum of positive squares in 16 ways, for example, as 4543381773441 + 418879750768704 = 2131521^2 + 20466552^2 .

It is not a de Polignac number, because 423423132542145 - 2² = 423423132542141 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 423423132542145.

It is not an unprimeable number, because it can be changed into a prime (423423132542141) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1733364315 + ... + 1733608575.

It is an arithmetic number, because the mean of its divisors is an integer number (7873630341499).

Almost surely, 2^{423423132542145} is an apocalyptic number.

423423132542145 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

423423132542145 is a deficient number, since it is larger than the sum of its proper divisors (332445380241759).

423423132542145 is a wasteful number, since it uses less digits than its factorization.

423423132542145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 247203 (or 247200 counting only the distinct ones).

The product of its digits is 2764800, while the sum is 45.

Adding to 423423132542145 its reverse (541245231324324), we get a palindrome (964668363866469).

The spelling of 423423132542145 in words is "four hundred twenty-three trillion, four hundred twenty-three billion, one hundred thirty-two million, five hundred forty-two thousand, one hundred forty-five".