120423530 has 32 divisors (see below), whose sum is σ = 229824000. Its totient is φ = 45351360.

The previous prime is 120423491. The next prime is 120423547. The reversal of 120423530 is 35324021.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6221 + ... + 16719.

It is an arithmetic number, because the mean of its divisors is an integer number (7182000).

Almost surely, 2^120423530 is an apocalyptic number.

120423530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

120423530 is a deficient number, since it is larger than the sum of its proper divisors (109400470).

120423530 is a wasteful number, since it uses less digits than its factorization.

120423530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10574.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 120423530 is about 10973.7655342184. The cubic root of 120423530 is about 493.8220195111.

Adding to 120423530 its reverse (35324021), we get a palindrome (155747551).

The spelling of 120423530 in words is "one hundred twenty million, four hundred twenty-three thousand, five hundred thirty".