123321530344431 has 8 divisors (see below), whose sum is σ = 164474933934384. Its totient is φ = 82191240158720.

The previous prime is 123321530344417. The next prime is 123321530344459. The reversal of 123321530344431 is 134443035123321.

It is a happy number.

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 123321530344431 - 2⁵ = 123321530344399 is a prime.

It is a super-2 number, since 2×123321530344431² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 123321530344431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123321530344471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5778338610 + ... + 5778359951.

It is an arithmetic number, because the mean of its divisors is an integer number (20559366741798).

Almost surely, 2^{123321530344431} is an apocalyptic number.

123321530344431 is a deficient number, since it is larger than the sum of its proper divisors (41153403589953).

123321530344431 is a wasteful number, since it uses less digits than its factorization.

123321530344431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11556702121.

The product of its (nonzero) digits is 311040, while the sum is 39.

Adding to 123321530344431 its reverse (134443035123321), we get a palindrome (257764565467752).

The spelling of 123321530344431 in words is "one hundred twenty-three trillion, three hundred twenty-one billion, five hundred thirty million, three hundred forty-four thousand, four hundred thirty-one".