123544530041011 has 4 divisors (see below), whose sum is σ = 130046873727400. Its totient is φ = 117042186354624.

The previous prime is 123544530040999. The next prime is 123544530041017. The reversal of 123544530041011 is 110140035445321.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 123544530041011 - 2⁵ = 123544530040979 is a prime.

It is a Duffinian 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 3 ways as a sum of consecutive naturals, for example, 3251171843166 + ... + 3251171843203.

It is an arithmetic number, because the mean of its divisors is an integer number (32511718431850).

Almost surely, 2^{123544530041011} is an apocalyptic number.

123544530041011 is a deficient number, since it is larger than the sum of its proper divisors (6502343686389).

123544530041011 is an equidigital number, since it uses as much as digits as its factorization.

123544530041011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6502343686388.

The product of its (nonzero) digits is 28800, while the sum is 34.

Adding to 123544530041011 its reverse (110140035445321), we get a palindrome (233684565486332).

The spelling of 123544530041011 in words is "one hundred twenty-three trillion, five hundred forty-four billion, five hundred thirty million, forty-one thousand, eleven".