123530111241543 has 12 divisors (see below), whose sum is σ = 180099975269448. Its totient is φ = 81583749479760.

The previous prime is 123530111241539. The next prime is 123530111241571. The reversal of 123530111241543 is 345142111035321.

123530111241543 is a `hidden beast` number, since 1 + 2 + 3 + 53 + 0 + 11 + 12 + 41 + 543 = 666.

It is not a de Polignac number, because 123530111241543 - 2² = 123530111241539 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 123530111241498 and 123530111241507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123530111241583) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 64138166868 + ... + 64138168793.

It is an arithmetic number, because the mean of its divisors is an integer number (15008331272454).

Almost surely, 2^{123530111241543} is an apocalyptic number.

123530111241543 is a deficient number, since it is larger than the sum of its proper divisors (56569864027905).

123530111241543 is a wasteful number, since it uses less digits than its factorization.

123530111241543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128276335774 (or 128276335771 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 36.

Adding to 123530111241543 its reverse (345142111035321), we get a palindrome (468672222276864).

The spelling of 123530111241543 in words is "one hundred twenty-three trillion, five hundred thirty billion, one hundred eleven million, two hundred forty-one thousand, five hundred forty-three".