121340404315 has 16 divisors (see below), whose sum is σ = 158794070400. Its totient is φ = 88470974592.

The previous prime is 121340404313. The next prime is 121340404333. The reversal of 121340404315 is 513404043121.

It is not a de Polignac number, because 121340404315 - 2¹ = 121340404313 is a prime.

It is not an unprimeable number, because it can be changed into a prime (121340404313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11809900 + ... + 11820169.

It is an arithmetic number, because the mean of its divisors is an integer number (9924629400).

Almost surely, 2^121340404315 is an apocalyptic number.

121340404315 is a deficient number, since it is larger than the sum of its proper divisors (37453666085).

121340404315 is a wasteful number, since it uses less digits than its factorization.

121340404315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23630166.

The product of its (nonzero) digits is 5760, while the sum is 28.

Adding to 121340404315 its reverse (513404043121), we get a palindrome (634744447436).

The spelling of 121340404315 in words is "one hundred twenty-one billion, three hundred forty million, four hundred four thousand, three hundred fifteen".