120312240 has 160 divisors (see below), whose sum is σ = 391213056. Its totient is φ = 30551040.

The previous prime is 120312239. The next prime is 120312259. The reversal of 120312240 is 42213021.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 766242 + ... + 766398.

Almost surely, 2^120312240 is an apocalyptic number.

120312240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 120312240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (195606528).

120312240 is an abundant number, since it is smaller than the sum of its proper divisors (270900816).

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

120312240 is a wasteful number, since it uses less digits than its factorization.

120312240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 307 (or 301 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 120312240 is about 10968.6936323338. The cubic root of 120312240 is about 493.6698499393.

Adding to 120312240 its reverse (42213021), we get a palindrome (162525261).

The spelling of 120312240 in words is "one hundred twenty million, three hundred twelve thousand, two hundred forty".