120421312 has 28 divisors (see below), whose sum is σ = 260686296. Its totient is φ = 54736640.

The previous prime is 120421243. The next prime is 120421333. The reversal of 120421312 is 213124021.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

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, 84823 + ... + 86230.

Almost surely, 2^120421312 is an apocalyptic number.

It is an amenable number.

120421312 is an abundant number, since it is smaller than the sum of its proper divisors (140264984).

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

120421312 is a wasteful number, since it uses less digits than its factorization.

120421312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171076 (or 171066 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 120421312 is about 10973.6644745500. The cubic root of 120421312 is about 493.8189877006.

Adding to 120421312 its reverse (213124021), we get a palindrome (333545333).

The spelling of 120421312 in words is "one hundred twenty million, four hundred twenty-one thousand, three hundred twelve".