123243422502321 has 24 divisors (see below), whose sum is σ = 194384448987456. Its totient is φ = 74622717059040.

The previous prime is 123243422502283. The next prime is 123243422502329. The reversal of 123243422502321 is 123205224342321.

123243422502321 is a `hidden beast` number, since 1 + 2 + 3 + 2 + 43 + 42 + 250 + 2 + 321 = 666.

It is not a de Polignac number, because 123243422502321 - 2²³ = 123243414113713 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (123243422502329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 585446530 + ... + 585657003.

It is an arithmetic number, because the mean of its divisors is an integer number (8099352041144).

Almost surely, 2^{123243422502321} is an apocalyptic number.

123243422502321 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

123243422502321 is a deficient number, since it is larger than the sum of its proper divisors (71141026485135).

123243422502321 is a wasteful number, since it uses less digits than its factorization.

123243422502321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1171104613 (or 1171104610 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 36.

Adding to 123243422502321 its reverse (123205224342321), we get a palindrome (246448646844642).

The spelling of 123243422502321 in words is "one hundred twenty-three trillion, two hundred forty-three billion, four hundred twenty-two million, five hundred two thousand, three hundred twenty-one".