120312128 has 28 divisors (see below), whose sum is σ = 252790452. Its totient is φ = 56616960.

The previous prime is 120312121. The next prime is 120312131. The reversal of 120312128 is 821213021.

It can be written as a sum of positive squares in 2 ways, for example, as 104693824 + 15618304 = 10232^2 + 3952^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120312121) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54203 + ... + 56378.

Almost surely, 2^120312128 is an apocalyptic number.

It is an amenable number.

120312128 is an abundant number, since it is smaller than the sum of its proper divisors (132478324).

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

120312128 is a wasteful number, since it uses less digits than its factorization.

120312128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110610 (or 110600 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 20.

The square root of 120312128 is about 10968.6885268933. The cubic root of 120312128 is about 493.6696967517.

Adding to 120312128 its reverse (821213021), we get a palindrome (941525149).

It can be divided in two parts, 1203 and 12128, that added together give a palindrome (13331).

The spelling of 120312128 in words is "one hundred twenty million, three hundred twelve thousand, one hundred twenty-eight".