13122334123121 has 4 divisors (see below), whose sum is σ = 13159507874532. Its totient is φ = 13085160371712.

The previous prime is 13122334123069. The next prime is 13122334123123. The reversal of 13122334123121 is 12132143322131.

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 2517125037025 + 10605209086096 = 1586545^2 + 3256564^2 .

It is a cyclic number.

It is not a de Polignac number, because 13122334123121 - 2¹⁴ = 13122334106737 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13122334123123) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18586875176 + ... + 18586875881.

It is an arithmetic number, because the mean of its divisors is an integer number (3289876968633).

Almost surely, 2^{13122334123121} is an apocalyptic number.

It is an amenable number.

13122334123121 is a deficient number, since it is larger than the sum of its proper divisors (37173751411).

13122334123121 is an equidigital number, since it uses as much as digits as its factorization.

13122334123121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37173751410.

The product of its digits is 5184, while the sum is 29.

Adding to 13122334123121 its reverse (12132143322131), we get a palindrome (25254477445252).

The spelling of 13122334123121 in words is "thirteen trillion, one hundred twenty-two billion, three hundred thirty-four million, one hundred twenty-three thousand, one hundred twenty-one".