121941718344 has 96 divisors (see below), whose sum is σ = 347863464000. Its totient is φ = 38483254656.

The previous prime is 121941718309. The next prime is 121941718391. The reversal of 121941718344 is 443817149121.

121941718344 is a `hidden beast` number, since 1 + 2 + 19 + 417 + 183 + 44 = 666.

It is a super-2 number, since 2×121941718344² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 121941718344.

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 23 ways as a sum of consecutive naturals, for example, 2170642 + ... + 2226110.

It is an arithmetic number, because the mean of its divisors is an integer number (3623577750).

Almost surely, 2^121941718344 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 121941718344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (173931732000).

121941718344 is an abundant number, since it is smaller than the sum of its proper divisors (225921745656).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121941718344 is a wasteful number, since it uses less digits than its factorization.

121941718344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57107 (or 57100 counting only the distinct ones).

The product of its digits is 193536, while the sum is 45.

The spelling of 121941718344 in words is "one hundred twenty-one billion, nine hundred forty-one million, seven hundred eighteen thousand, three hundred forty-four".