12523116222437 has 8 divisors (see below), whose sum is σ = 13069700248320. Its totient is φ = 11976707255920.

The previous prime is 12523116222349. The next prime is 12523116222443. The reversal of 12523116222437 is 73422261132521.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12523116222437 - 2²⁴ = 12523099445221 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12523116222394 and 12523116222403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12523116222467) 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, 43618637 + ... + 43904802.

It is an arithmetic number, because the mean of its divisors is an integer number (1633712531040).

Almost surely, 2^{12523116222437} is an apocalyptic number.

It is an amenable number.

12523116222437 is a deficient number, since it is larger than the sum of its proper divisors (546584025883).

12523116222437 is an equidigital number, since it uses as much as digits as its factorization.

12523116222437 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87529683.

The product of its digits is 241920, while the sum is 41.

Adding to 12523116222437 its reverse (73422261132521), we get a palindrome (85945377354958).

The spelling of 12523116222437 in words is "twelve trillion, five hundred twenty-three billion, one hundred sixteen million, two hundred twenty-two thousand, four hundred thirty-seven".