423121104 has 80 divisors (see below), whose sum is σ = 1388026240. Its totient is φ = 120890880.

The previous prime is 423121099. The next prime is 423121117. The reversal of 423121104 is 401121324.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 66937 + ... + 72984.

It is an arithmetic number, because the mean of its divisors is an integer number (17350328).

Almost surely, 2^423121104 is an apocalyptic number.

It is an amenable number.

423121104 is an abundant number, since it is smaller than the sum of its proper divisors (964905136).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

423121104 is a wasteful number, since it uses less digits than its factorization.

423121104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139945 (or 139933 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 423121104 is about 20569.9077294965. The cubic root of 423121104 is about 750.7377061483.

Adding to 423121104 its reverse (401121324), we get a palindrome (824242428).

The spelling of 423121104 in words is "four hundred twenty-three million, one hundred twenty-one thousand, one hundred four".