121344144015 has 8 divisors (see below), whose sum is σ = 194150630448. Its totient is φ = 64716876800.

The previous prime is 121344143989. The next prime is 121344144067. The reversal of 121344144015 is 510441443121.

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

It is not a de Polignac number, because 121344144015 - 2⁶ = 121344143951 is a prime.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 4044804786 + ... + 4044804815.

It is an arithmetic number, because the mean of its divisors is an integer number (24268828806).

Almost surely, 2^121344144015 is an apocalyptic number.

121344144015 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

121344144015 is a deficient number, since it is larger than the sum of its proper divisors (72806486433).

121344144015 is an equidigital number, since it uses as much as digits as its factorization.

121344144015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8089609609.

The product of its (nonzero) digits is 7680, while the sum is 30.

Adding to 121344144015 its reverse (510441443121), we get a palindrome (631785587136).

The spelling of 121344144015 in words is "one hundred twenty-one billion, three hundred forty-four million, one hundred forty-four thousand, fifteen".