123544530041012 has 24 divisors (see below), whose sum is σ = 217505176103040. Its totient is φ = 61400219931360.

The previous prime is 123544530040999. The next prime is 123544530041017. The reversal of 123544530041012 is 210140035445321.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123544530041017) 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, 15925337 + ... + 22376447.

It is an arithmetic number, because the mean of its divisors is an integer number (9062715670960).

Almost surely, 2^{123544530041012} is an apocalyptic number.

It is an amenable number.

123544530041012 is a deficient number, since it is larger than the sum of its proper divisors (93960646062028).

123544530041012 is a wasteful number, since it uses less digits than its factorization.

123544530041012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6479951 (or 6479949 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 35.

Adding to 123544530041012 its reverse (210140035445321), we get a palindrome (333684565486333).

The spelling of 123544530041012 in words is "one hundred twenty-three trillion, five hundred forty-four billion, five hundred thirty million, forty-one thousand, twelve".