423021320101 has 4 divisors (see below), whose sum is σ = 423028705792. Its totient is φ = 423013934412.

The previous prime is 423021320083. The next prime is 423021320143. The reversal of 423021320101 is 101023120324.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 423021320101 - 2¹⁵ = 423021287333 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423021327101) 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 3 ways as a sum of consecutive naturals, for example, 3606255 + ... + 3721708.

It is an arithmetic number, because the mean of its divisors is an integer number (105757176448).

Almost surely, 2^423021320101 is an apocalyptic number.

It is an amenable number.

423021320101 is a deficient number, since it is larger than the sum of its proper divisors (7385691).

423021320101 is an equidigital number, since it uses as much as digits as its factorization.

423021320101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7385690.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 423021320101 its reverse (101023120324), we get a palindrome (524044440425).

The spelling of 423021320101 in words is "four hundred twenty-three billion, twenty-one million, three hundred twenty thousand, one hundred one".