1543540104123 has 8 divisors (see below), whose sum is σ = 2096884669968. Its totient is φ = 1009611137184.

The previous prime is 1543540104109. The next prime is 1543540104209. The reversal of 1543540104123 is 3214010453451.

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

It is not a de Polignac number, because 1543540104123 - 2¹³ = 1543540095931 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1543540103123) 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 7 ways as a sum of consecutive naturals, for example, 4853899540 + ... + 4853899857.

It is an arithmetic number, because the mean of its divisors is an integer number (262110583746).

Almost surely, 2^{1543540104123} is an apocalyptic number.

1543540104123 is a deficient number, since it is larger than the sum of its proper divisors (553344565845).

1543540104123 is an equidigital number, since it uses as much as digits as its factorization.

1543540104123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9707799453.

The product of its (nonzero) digits is 28800, while the sum is 33.

Adding to 1543540104123 its reverse (3214010453451), we get a palindrome (4757550557574).

The spelling of 1543540104123 in words is "one trillion, five hundred forty-three billion, five hundred forty million, one hundred four thousand, one hundred twenty-three".