123531544430111 has 8 divisors (see below), whose sum is σ = 127035215648880. Its totient is φ = 120036556412928.

The previous prime is 123531544430089. The next prime is 123531544430113. The reversal of 123531544430111 is 111034445135321.

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

It is a cyclic number.

It is not a de Polignac number, because 123531544430111 - 2¹⁴ = 123531544413727 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123531544430113) 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, 2170771541 + ... + 2170828446.

It is an arithmetic number, because the mean of its divisors is an integer number (15879401956110).

Almost surely, 2^{123531544430111} is an apocalyptic number.

123531544430111 is a deficient number, since it is larger than the sum of its proper divisors (3503671218769).

123531544430111 is an equidigital number, since it uses as much as digits as its factorization.

123531544430111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4341600793.

The product of its (nonzero) digits is 86400, while the sum is 38.

Adding to 123531544430111 its reverse (111034445135321), we get a palindrome (234565989565432).

The spelling of 123531544430111 in words is "one hundred twenty-three trillion, five hundred thirty-one billion, five hundred forty-four million, four hundred thirty thousand, one hundred eleven".