423240123233 has 4 divisors (see below), whose sum is σ = 423466820400. Its totient is φ = 423013426068.

The previous prime is 423240123217. The next prime is 423240123253. The reversal of 423240123233 is 332321042324.

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 423240123233 - 2⁴ = 423240123217 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 423240123196 and 423240123205.

It is not an unprimeable number, because it can be changed into a prime (423240123253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 113345783 + ... + 113349516.

It is an arithmetic number, because the mean of its divisors is an integer number (105866705100).

Almost surely, 2^423240123233 is an apocalyptic number.

It is an amenable number.

423240123233 is a deficient number, since it is larger than the sum of its proper divisors (226697167).

423240123233 is a wasteful number, since it uses less digits than its factorization.

423240123233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 226697166.

The product of its (nonzero) digits is 20736, while the sum is 29.

Adding to 423240123233 its reverse (332321042324), we get a palindrome (755561165557).

The spelling of 423240123233 in words is "four hundred twenty-three billion, two hundred forty million, one hundred twenty-three thousand, two hundred thirty-three".