12120441054551 has 8 divisors (see below), whose sum is σ = 12424890155760. Its totient is φ = 11818797936192.

The previous prime is 12120441054523. The next prime is 12120441054583. The reversal of 12120441054551 is 15545014402121.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12120441054551 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 (12120441054251) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 701486966 + ... + 701504243.

It is an arithmetic number, because the mean of its divisors is an integer number (1553111269470).

Almost surely, 2^{12120441054551} is an apocalyptic number.

12120441054551 is a deficient number, since it is larger than the sum of its proper divisors (304449101209).

12120441054551 is a wasteful number, since it uses less digits than its factorization.

12120441054551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1402991425.

The product of its (nonzero) digits is 32000, while the sum is 35.

Adding to 12120441054551 its reverse (15545014402121), we get a palindrome (27665455456672).

The spelling of 12120441054551 in words is "twelve trillion, one hundred twenty billion, four hundred forty-one million, fifty-four thousand, five hundred fifty-one".