12134081543623 has 16 divisors (see below), whose sum is σ = 13783479109120. Its totient is φ = 10589391644256.

The previous prime is 12134081543609. The next prime is 12134081543659. The reversal of 12134081543623 is 32634518043121.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12134081543623 is a prime.

It is a super-2 number, since 2×12134081543623² (a number of 27 digits) contains 22 as substring.

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 12134081543623.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12134081543123) 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, 50316915 + ... + 50557492.

It is an arithmetic number, because the mean of its divisors is an integer number (861467444320).

Almost surely, 2^{12134081543623} is an apocalyptic number.

12134081543623 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

12134081543623 is a deficient number, since it is larger than the sum of its proper divisors (1649397565497).

12134081543623 is a wasteful number, since it uses less digits than its factorization.

12134081543623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100874926.

The product of its (nonzero) digits is 414720, while the sum is 43.

Adding to 12134081543623 its reverse (32634518043121), we get a palindrome (44768599586744).

The spelling of 12134081543623 in words is "twelve trillion, one hundred thirty-four billion, eighty-one million, five hundred forty-three thousand, six hundred twenty-three".