123205114543 has 16 divisors (see below), whose sum is σ = 149097996864. Its totient is φ = 99386058240.

The previous prime is 123205114537. The next prime is 123205114603. The reversal of 123205114543 is 345411502321.

It is not a de Polignac number, because 123205114543 - 2⁹ = 123205114031 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 (123205154543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3112053 + ... + 3151393.

It is an arithmetic number, because the mean of its divisors is an integer number (9318624804).

Almost surely, 2^123205114543 is an apocalyptic number.

123205114543 is a deficient number, since it is larger than the sum of its proper divisors (25892882321).

123205114543 is a wasteful number, since it uses less digits than its factorization.

123205114543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65682.

The product of its (nonzero) digits is 14400, while the sum is 31.

Adding to 123205114543 its reverse (345411502321), we get a palindrome (468616616864).

The spelling of 123205114543 in words is "one hundred twenty-three billion, two hundred five million, one hundred fourteen thousand, five hundred forty-three".