121115443212315 has 24 divisors (see below), whose sum is σ = 209936955619248. Its totient is φ = 64593819748800.

The previous prime is 121115443212311. The next prime is 121115443212317. The reversal of 121115443212315 is 513212344511121.

121115443212315 is a `hidden beast` number, since 1 + 2 + 1 + 1 + 15 + 4 + 4 + 321 + 2 + 315 = 666.

It is not a de Polignac number, because 121115443212315 - 2² = 121115443212311 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 121115443212315.

It is not an unprimeable number, because it can be changed into a prime (121115443212311) 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 23 ways as a sum of consecutive naturals, for example, 19852036 + ... + 25225665.

It is an arithmetic number, because the mean of its divisors is an integer number (8747373150802).

Almost surely, 2^{121115443212315} is an apocalyptic number.

121115443212315 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

121115443212315 is a deficient number, since it is larger than the sum of its proper divisors (88821512406933).

121115443212315 is a wasteful number, since it uses less digits than its factorization.

121115443212315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45137419 (or 45137416 counting only the distinct ones).

The product of its digits is 28800, while the sum is 36.

Adding to 121115443212315 its reverse (513212344511121), we get a palindrome (634327787723436).

The spelling of 121115443212315 in words is "one hundred twenty-one trillion, one hundred fifteen billion, four hundred forty-three million, two hundred twelve thousand, three hundred fifteen".