123541041243 has 16 divisors (see below), whose sum is σ = 166880282400. Its totient is φ = 81284670720.

The previous prime is 123541041229. The next prime is 123541041259. The reversal of 123541041243 is 342140145321.

It is not a de Polignac number, because 123541041243 - 2³⁴ = 106361172059 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 123541041243.

It is not an unprimeable number, because it can be changed into a prime (123541041293) 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, 283188 + ... + 572081.

It is an arithmetic number, because the mean of its divisors is an integer number (10430017650).

Almost surely, 2^123541041243 is an apocalyptic number.

123541041243 is a deficient number, since it is larger than the sum of its proper divisors (43339241157).

123541041243 is an equidigital number, since it uses as much as digits as its factorization.

123541041243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 855902.

The product of its (nonzero) digits is 11520, while the sum is 30.

Adding to 123541041243 its reverse (342140145321), we get a palindrome (465681186564).

The spelling of 123541041243 in words is "one hundred twenty-three billion, five hundred forty-one million, forty-one thousand, two hundred forty-three".