12023320542013 has 16 divisors (see below), whose sum is σ = 13129321121280. Its totient is φ = 10919486361600.

The previous prime is 12023320541899. The next prime is 12023320542019. The reversal of 12023320542013 is 31024502332021.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 12023320542013 - 2⁹ = 12023320541501 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12023320542019) 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, 54610993 + ... + 54830713.

It is an arithmetic number, because the mean of its divisors is an integer number (820582570080).

Almost surely, 2^{12023320542013} is an apocalyptic number.

It is an amenable number.

12023320542013 is a deficient number, since it is larger than the sum of its proper divisors (1106000579267).

12023320542013 is a wasteful number, since it uses less digits than its factorization.

12023320542013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224628.

The product of its (nonzero) digits is 8640, while the sum is 28.

Adding to 12023320542013 its reverse (31024502332021), we get a palindrome (43047822874034).

The spelling of 12023320542013 in words is "twelve trillion, twenty-three billion, three hundred twenty million, five hundred forty-two thousand, thirteen".