120103312 has 60 divisors (see below), whose sum is σ = 272118000. Its totient is φ = 51202368.

The previous prime is 120103307. The next prime is 120103339. The reversal of 120103312 is 213301021.

It is a junction number, because it is equal to n+sod(n) for n = 120103292 and 120103301.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 240439 + ... + 240937.

It is an arithmetic number, because the mean of its divisors is an integer number (4535300).

Almost surely, 2^120103312 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 120103312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (136059000).

120103312 is an abundant number, since it is smaller than the sum of its proper divisors (152014688).

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

120103312 is a wasteful number, since it uses less digits than its factorization.

120103312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 828 (or 815 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 120103312 is about 10959.1656616733. The cubic root of 120103312 is about 493.3839238760.

Adding to 120103312 its reverse (213301021), we get a palindrome (333404333).

The spelling of 120103312 in words is "one hundred twenty million, one hundred three thousand, three hundred twelve".