123340204543 has 8 divisors (see below), whose sum is σ = 123523934688. Its totient is φ = 123156530784.

The previous prime is 123340204541. The next prime is 123340204553. The reversal of 123340204543 is 345402043321.

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 123340204543 - 2¹ = 123340204541 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 (123340204541) 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, 6571230 + ... + 6589972.

It is an arithmetic number, because the mean of its divisors is an integer number (15440491836).

Almost surely, 2^123340204543 is an apocalyptic number.

123340204543 is a deficient number, since it is larger than the sum of its proper divisors (183730145).

123340204543 is an equidigital number, since it uses as much as digits as its factorization.

123340204543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28193.

The product of its (nonzero) digits is 34560, while the sum is 31.

Adding to 123340204543 its reverse (345402043321), we get a palindrome (468742247864).

The spelling of 123340204543 in words is "one hundred twenty-three billion, three hundred forty million, two hundred four thousand, five hundred forty-three".