423321131232101 has 16 divisors (see below), whose sum is σ = 449759172164400. Its totient is φ = 397053888135168.

The previous prime is 423321131232091. The next prime is 423321131232113. The reversal of 423321131232101 is 101232131123324.

It can be written as a sum of positive squares in 8 ways, for example, as 30696021079201 + 392625110152900 = 5540399^2 + 19814770^2 .

It is a cyclic number.

It is not a de Polignac number, because 423321131232101 - 2⁶ = 423321131232037 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423321131232121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 335133845 + ... + 336394613.

It is an arithmetic number, because the mean of its divisors is an integer number (28109948260275).

Almost surely, 2^{423321131232101} is an apocalyptic number.

It is an amenable number.

423321131232101 is a deficient number, since it is larger than the sum of its proper divisors (26438040932299).

423321131232101 is a wasteful number, since it uses less digits than its factorization.

423321131232101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1328488.

The product of its (nonzero) digits is 5184, while the sum is 29.

Adding to 423321131232101 its reverse (101232131123324), we get a palindrome (524553262355425).

The spelling of 423321131232101 in words is "four hundred twenty-three trillion, three hundred twenty-one billion, one hundred thirty-one million, two hundred thirty-two thousand, one hundred one".