13121122220342 has 8 divisors (see below), whose sum is σ = 20717561400600. Its totient is φ = 6215268420144.

The previous prime is 13121122220341. The next prime is 13121122220351. The reversal of 13121122220342 is 24302222112131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13121122220341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 172646344967 + ... + 172646345042.

It is an arithmetic number, because the mean of its divisors is an integer number (2589695175075).

Almost surely, 2^{13121122220342} is an apocalyptic number.

13121122220342 is a deficient number, since it is larger than the sum of its proper divisors (7596439180258).

13121122220342 is a wasteful number, since it uses less digits than its factorization.

13121122220342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 345292690030.

The product of its (nonzero) digits is 2304, while the sum is 26.

Adding to 13121122220342 its reverse (24302222112131), we get a palindrome (37423344332473).

The spelling of 13121122220342 in words is "thirteen trillion, one hundred twenty-one billion, one hundred twenty-two million, two hundred twenty thousand, three hundred forty-two".