121035544551 has 6 divisors (see below), whose sum is σ = 174829119920. Its totient is φ = 80690363028.

The previous prime is 121035544549. The next prime is 121035544577. The reversal of 121035544551 is 155445530121.

121035544551 is a `hidden beast` number, since 1 + 2 + 10 + 3 + 55 + 44 + 551 = 666.

It is not a de Polignac number, because 121035544551 - 2¹ = 121035544549 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121035544541) 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 5 ways as a sum of consecutive naturals, for example, 6724196911 + ... + 6724196928.

Almost surely, 2^121035544551 is an apocalyptic number.

121035544551 is a deficient number, since it is larger than the sum of its proper divisors (53793575369).

121035544551 is a wasteful number, since it uses less digits than its factorization.

121035544551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13448393845 (or 13448393842 counting only the distinct ones).

The product of its (nonzero) digits is 60000, while the sum is 36.

The spelling of 121035544551 in words is "one hundred twenty-one billion, thirty-five million, five hundred forty-four thousand, five hundred fifty-one".