423123212043 has 48 divisors (see below), whose sum is σ = 712723167936. Its totient is φ = 236871048960.

The previous prime is 423123212009. The next prime is 423123212047. The reversal of 423123212043 is 340212321324.

423123212043 is a `hidden beast` number, since 4 + 2 + 312 + 321 + 20 + 4 + 3 = 666.

It is not a de Polignac number, because 423123212043 - 2¹⁷ = 423123080971 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 423123211998 and 423123212016.

It is not an unprimeable number, because it can be changed into a prime (423123212047) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2166913 + ... + 2354093.

It is an arithmetic number, because the mean of its divisors is an integer number (14848399332).

Almost surely, 2^423123212043 is an apocalyptic number.

423123212043 is a deficient number, since it is larger than the sum of its proper divisors (289599955893).

423123212043 is a wasteful number, since it uses less digits than its factorization.

423123212043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187924 (or 187921 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

Adding to 423123212043 its reverse (340212321324), we get a palindrome (763335533367).

The spelling of 423123212043 in words is "four hundred twenty-three billion, one hundred twenty-three million, two hundred twelve thousand, forty-three".