120021430 has 16 divisors (see below), whose sum is σ = 223488720. Its totient is φ = 46352992.

The previous prime is 120021427. The next prime is 120021439. The reversal of 120021430 is 34120021.

It is a self number, because there is not a number n which added to its sum of digits gives 120021430.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120021439) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 206644 + ... + 207223.

It is an arithmetic number, because the mean of its divisors is an integer number (13968045).

Almost surely, 2^120021430 is an apocalyptic number.

120021430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

120021430 is a deficient number, since it is larger than the sum of its proper divisors (103467290).

120021430 is a wasteful number, since it uses less digits than its factorization.

120021430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 413903.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 120021430 is about 10955.4292476379. The cubic root of 120021430 is about 493.2717747433.

Adding to 120021430 its reverse (34120021), we get a palindrome (154141451).

The spelling of 120021430 in words is "one hundred twenty million, twenty-one thousand, four hundred thirty".