121321103338 has 16 divisors (see below), whose sum is σ = 188815540680. Its totient is φ = 58395004416.

The previous prime is 121321103297. The next prime is 121321103339. The reversal of 121321103338 is 833301123121.

It can be written as a sum of positive squares in 4 ways, for example, as 60001972209 + 61319131129 = 244953^2 + 247627^2 .

It is not an unprimeable number, because it can be changed into a prime (121321103339) 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 7 ways as a sum of consecutive naturals, for example, 3083931 + ... + 3123022.

Almost surely, 2^121321103338 is an apocalyptic number.

121321103338 is a deficient number, since it is larger than the sum of its proper divisors (67494437342).

121321103338 is a wasteful number, since it uses less digits than its factorization.

121321103338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6207321.

The product of its (nonzero) digits is 2592, while the sum is 28.

Adding to 121321103338 its reverse (833301123121), we get a palindrome (954622226459).

The spelling of 121321103338 in words is "one hundred twenty-one billion, three hundred twenty-one million, one hundred three thousand, three hundred thirty-eight".