12072152117 has 4 divisors (see below), whose sum is σ = 12597028320. Its totient is φ = 11547275916.

The previous prime is 12072152041. The next prime is 12072152137. The reversal of 12072152117 is 71125127021.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12072152117 - 2¹² = 12072148021 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12072152117.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12072152137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 262438067 + ... + 262438112.

It is an arithmetic number, because the mean of its divisors is an integer number (3149257080).

Almost surely, 2^12072152117 is an apocalyptic number.

It is an amenable number.

12072152117 is a deficient number, since it is larger than the sum of its proper divisors (524876203).

12072152117 is an equidigital number, since it uses as much as digits as its factorization.

12072152117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 524876202.

The product of its (nonzero) digits is 1960, while the sum is 29.

Adding to 12072152117 its reverse (71125127021), we get a palindrome (83197279138).

The spelling of 12072152117 in words is "twelve billion, seventy-two million, one hundred fifty-two thousand, one hundred seventeen".