123322121413 has 4 divisors (see below), whose sum is σ = 123359348428. Its totient is φ = 123284894400.

The previous prime is 123322121407. The next prime is 123322121423. The reversal of 123322121413 is 314121223321.

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

It can be written as a sum of positive squares in 2 ways, for example, as 99563598369 + 23758523044 = 315537^2 + 154138^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-123322121413 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 (123322121423) 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 3 ways as a sum of consecutive naturals, for example, 18608538 + ... + 18615163.

It is an arithmetic number, because the mean of its divisors is an integer number (30839837107).

Almost surely, 2^123322121413 is an apocalyptic number.

It is an amenable number.

123322121413 is a deficient number, since it is larger than the sum of its proper divisors (37227015).

123322121413 is an equidigital number, since it uses as much as digits as its factorization.

123322121413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37227014.

The product of its digits is 1728, while the sum is 25.

Adding to 123322121413 its reverse (314121223321), we get a palindrome (437443344734).

The spelling of 123322121413 in words is "one hundred twenty-three billion, three hundred twenty-two million, one hundred twenty-one thousand, four hundred thirteen".