12115136422331 has 4 divisors (see below), whose sum is σ = 12116712485232. Its totient is φ = 12113560359432.

The previous prime is 12115136422321. The next prime is 12115136422427. The reversal of 12115136422331 is 13322463151121.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12115136422331 - 2⁶ = 12115136422267 is a prime.

It is a super-2 number, since 2×12115136422331² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12115136422291 and 12115136422300.

It is not an unprimeable number, because it can be changed into a prime (12115136422321) 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, 788019920 + ... + 788035293.

It is an arithmetic number, because the mean of its divisors is an integer number (3029178121308).

Almost surely, 2^{12115136422331} is an apocalyptic number.

12115136422331 is a deficient number, since it is larger than the sum of its proper divisors (1576062901).

12115136422331 is an equidigital number, since it uses as much as digits as its factorization.

12115136422331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1576062900.

The product of its digits is 25920, while the sum is 35.

Adding to 12115136422331 its reverse (13322463151121), we get a palindrome (25437599573452).

The spelling of 12115136422331 in words is "twelve trillion, one hundred fifteen billion, one hundred thirty-six million, four hundred twenty-two thousand, three hundred thirty-one".