12153015242 has 8 divisors (see below), whose sum is σ = 18232395300. Its totient is φ = 6075550144.

The previous prime is 12153015221. The next prime is 12153015247. The reversal of 12153015242 is 24251035121.

It can be written as a sum of positive squares in 2 ways, for example, as 7983601201 + 4169414041 = 89351^2 + 64571^2 .

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

It is not an unprimeable number, because it can be changed into a prime (12153015247) 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, 462767 + ... + 488322.

Almost surely, 2^12153015242 is an apocalyptic number.

12153015242 is a deficient number, since it is larger than the sum of its proper divisors (6079380058).

12153015242 is an equidigital number, since it uses as much as digits as its factorization.

12153015242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 957480.

The product of its (nonzero) digits is 2400, while the sum is 26.

The spelling of 12153015242 in words is "twelve billion, one hundred fifty-three million, fifteen thousand, two hundred forty-two".