23121224013534 has 16 divisors (see below), whose sum is σ = 46336628171520. Its totient is φ = 7691377980440.

The previous prime is 23121224013527. The next prime is 23121224013539. The reversal of 23121224013534 is 43531042212132.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 23121224013495 and 23121224013504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23121224013539) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3924169494 + ... + 3924175385.

It is an arithmetic number, because the mean of its divisors is an integer number (2896039260720).

Almost surely, 2^{23121224013534} is an apocalyptic number.

23121224013534 is an abundant number, since it is smaller than the sum of its proper divisors (23215404157986).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23121224013534 is a wasteful number, since it uses less digits than its factorization.

23121224013534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7848345375.

The product of its (nonzero) digits is 34560, while the sum is 33.

Adding to 23121224013534 its reverse (43531042212132), we get a palindrome (66652266225666).

The spelling of 23121224013534 in words is "twenty-three trillion, one hundred twenty-one billion, two hundred twenty-four million, thirteen thousand, five hundred thirty-four".