123324021013 has 8 divisors (see below), whose sum is σ = 129046861368. Its totient is φ = 117726957504.

The previous prime is 123324020971. The next prime is 123324021019. The reversal of 123324021013 is 310120423321.

It can be written as a sum of positive squares in 4 ways, for example, as 14013114129 + 109310906884 = 118377^2 + 330622^2 .

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 123324021013 - 2¹³ = 123324012821 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 (123324021019) 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, 31442206 + ... + 31446127.

It is an arithmetic number, because the mean of its divisors is an integer number (16130857671).

Almost surely, 2^123324021013 is an apocalyptic number.

It is an amenable number.

123324021013 is a deficient number, since it is larger than the sum of its proper divisors (5722840355).

123324021013 is an equidigital number, since it uses as much as digits as its factorization.

123324021013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62888423.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 123324021013 its reverse (310120423321), we get a palindrome (433444444334).

The spelling of 123324021013 in words is "one hundred twenty-three billion, three hundred twenty-four million, twenty-one thousand, thirteen".