423123423003 has 20 divisors (see below), whose sum is σ = 633208110480. Its totient is φ = 281575820592.

The previous prime is 423123422947. The next prime is 423123423013. The reversal of 423123423003 is 300324321324.

423123423003 is a `hidden beast` number, since 4 + 2 + 3 + 12 + 342 + 300 + 3 = 666.

It is not a de Polignac number, because 423123423003 - 2²⁰ = 423122374427 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (423123423013) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 4644063 + ... + 4734296.

It is an arithmetic number, because the mean of its divisors is an integer number (31660405524).

Almost surely, 2^423123423003 is an apocalyptic number.

423123423003 is a deficient number, since it is larger than the sum of its proper divisors (210084687477).

423123423003 is an equidigital number, since it uses as much as digits as its factorization.

423123423003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9378928 (or 9378919 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 27.

Adding to 423123423003 its reverse (300324321324), we get a palindrome (723447744327).

The spelling of 423123423003 in words is "four hundred twenty-three billion, one hundred twenty-three million, four hundred twenty-three thousand, three".