12315223332541 has 4 divisors (see below), whose sum is σ = 12364287967584. Its totient is φ = 12266158697500.

The previous prime is 12315223332479. The next prime is 12315223332571. The reversal of 12315223332541 is 14523332251321.

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 12315223332541 - 2²¹ = 12315221235389 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 12315223332541.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12315223332571) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24532317145 + ... + 24532317646.

It is an arithmetic number, because the mean of its divisors is an integer number (3091071991896).

Almost surely, 2^{12315223332541} is an apocalyptic number.

It is an amenable number.

12315223332541 is a deficient number, since it is larger than the sum of its proper divisors (49064635043).

12315223332541 is an equidigital number, since it uses as much as digits as its factorization.

12315223332541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49064635042.

The product of its digits is 129600, while the sum is 37.

Adding to 12315223332541 its reverse (14523332251321), we get a palindrome (26838555583862).

The spelling of 12315223332541 in words is "twelve trillion, three hundred fifteen billion, two hundred twenty-three million, three hundred thirty-two thousand, five hundred forty-one".