123533430 has 16 divisors (see below), whose sum is σ = 296480304. Its totient is φ = 32942240.

The previous prime is 123533411. The next prime is 123533471. The reversal of 123533430 is 34335321.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 123533430.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 2058861 + ... + 2058920.

It is an arithmetic number, because the mean of its divisors is an integer number (18530019).

Almost surely, 2^123533430 is an apocalyptic number.

123533430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

123533430 is an abundant number, since it is smaller than the sum of its proper divisors (172946874).

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

123533430 is a wasteful number, since it uses less digits than its factorization.

123533430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4117791.

The product of its (nonzero) digits is 3240, while the sum is 24.

The square root of 123533430 is about 11114.5593704834. The cubic root of 123533430 is about 498.0368757068.

Adding to 123533430 its reverse (34335321), we get a palindrome (157868751).

The spelling of 123533430 in words is "one hundred twenty-three million, five hundred thirty-three thousand, four hundred thirty".