121752641426 has 8 divisors (see below), whose sum is σ = 196677343884. Its totient is φ = 56193526800.

The previous prime is 121752641407. The next prime is 121752641473. The reversal of 121752641426 is 624146257121.

It is a happy number.

121752641426 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 120683286025 + 1069355401 = 347395^2 + 32701^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2341396925 + ... + 2341396976.

Almost surely, 2^121752641426 is an apocalyptic number.

121752641426 is a deficient number, since it is larger than the sum of its proper divisors (74924702458).

121752641426 is a wasteful number, since it uses less digits than its factorization.

121752641426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4682793916.

The product of its digits is 161280, while the sum is 41.

Adding to 121752641426 its reverse (624146257121), we get a palindrome (745898898547).

The spelling of 121752641426 in words is "one hundred twenty-one billion, seven hundred fifty-two million, six hundred forty-one thousand, four hundred twenty-six".