12152243511 has 16 divisors (see below), whose sum is σ = 18308467200. Its totient is φ = 7964181144.

The previous prime is 12152243471. The next prime is 12152243513. The reversal of 12152243511 is 11534225121.

It is a happy number.

12152243511 is a `hidden beast` number, since 1 + 215 + 2 + 2 + 435 + 11 = 666.

It is not a de Polignac number, because 12152243511 - 2⁶ = 12152243447 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12152243513) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3812671 + ... + 3815856.

It is an arithmetic number, because the mean of its divisors is an integer number (1144279200).

Almost surely, 2^12152243511 is an apocalyptic number.

12152243511 is a deficient number, since it is larger than the sum of its proper divisors (6156223689).

12152243511 is an equidigital number, since it uses as much as digits as its factorization.

12152243511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7628595 (or 7628589 counting only the distinct ones).

The product of its digits is 2400, while the sum is 27.

Adding to 12152243511 its reverse (11534225121), we get a palindrome (23686468632).

The spelling of 12152243511 in words is "twelve billion, one hundred fifty-two million, two hundred forty-three thousand, five hundred eleven".