120421256 has 16 divisors (see below), whose sum is σ = 226241100. Its totient is φ = 60090304.

The previous prime is 120421243. The next prime is 120421333. The reversal of 120421256 is 652124021.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 120253156 + 168100 = 10966^2 + 410^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10715 + ... + 18858.

Almost surely, 2^120421256 is an apocalyptic number.

It is an amenable number.

120421256 is a deficient number, since it is larger than the sum of its proper divisors (105819844).

120421256 is a wasteful number, since it uses less digits than its factorization.

120421256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30088 (or 30084 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 120421256 is about 10973.6619229863. The cubic root of 120421256 is about 493.8189111531.

Adding to 120421256 its reverse (652124021), we get a palindrome (772545277).

The spelling of 120421256 in words is "one hundred twenty million, four hundred twenty-one thousand, two hundred fifty-six".