12342521320023 has 16 divisors (see below), whose sum is σ = 16990733935616. Its totient is φ = 7961427429120.

The previous prime is 12342521320013. The next prime is 12342521320027. The reversal of 12342521320023 is 32002312524321.

It is not a de Polignac number, because 12342521320023 - 2⁵ = 12342521319991 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 (12342521320027) 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, 11912986 + ... + 12907527.

It is an arithmetic number, because the mean of its divisors is an integer number (1061920870976).

Almost surely, 2^{12342521320023} is an apocalyptic number.

12342521320023 is a deficient number, since it is larger than the sum of its proper divisors (4648212615593).

12342521320023 is a wasteful number, since it uses less digits than its factorization.

12342521320023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24825894.

The product of its (nonzero) digits is 17280, while the sum is 30.

Adding to 12342521320023 its reverse (32002312524321), we get a palindrome (44344833844344).

The spelling of 12342521320023 in words is "twelve trillion, three hundred forty-two billion, five hundred twenty-one million, three hundred twenty thousand, twenty-three".