423520111 has 8 divisors (see below), whose sum is σ = 485581824. Its totient is φ = 361848120.

The previous prime is 423520103. The next prime is 423520121. The reversal of 423520111 is 111025324.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 423520111 - 2³ = 423520103 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423520121) 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 7 ways as a sum of consecutive naturals, for example, 95095 + ... + 99448.

It is an arithmetic number, because the mean of its divisors is an integer number (60697728).

Almost surely, 2^423520111 is an apocalyptic number.

423520111 is a deficient number, since it is larger than the sum of its proper divisors (62061713).

423520111 is a wasteful number, since it uses less digits than its factorization.

423520111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194861.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 423520111 is about 20579.6042478955. The cubic root of 423520111 is about 750.9736161412.

Adding to 423520111 its reverse (111025324), we get a palindrome (534545435).

The spelling of 423520111 in words is "four hundred twenty-three million, five hundred twenty thousand, one hundred eleven".