120015231 has 8 divisors (see below), whose sum is σ = 182880384. Its totient is φ = 68580120.

The previous prime is 120015221. The next prime is 120015251. The reversal of 120015231 is 132510021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 120015231 - 2⁵ = 120015199 is a prime.

It is a super-2 number, since 2×120015231² = 28807311343966722, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 120015231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120015221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2857485 + ... + 2857526.

It is an arithmetic number, because the mean of its divisors is an integer number (22860048).

Almost surely, 2^120015231 is an apocalyptic number.

120015231 is a deficient number, since it is larger than the sum of its proper divisors (62865153).

120015231 is an equidigital number, since it uses as much as digits as its factorization.

120015231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5715021.

The product of its (nonzero) digits is 60, while the sum is 15.

The square root of 120015231 is about 10955.1463249014. The cubic root of 120015231 is about 493.2632822478.

Adding to 120015231 its reverse (132510021), we get a palindrome (252525252).

The spelling of 120015231 in words is "one hundred twenty million, fifteen thousand, two hundred thirty-one".