120004345550551 has 12 divisors (see below), whose sum is σ = 150749260527376. Its totient is φ = 93509879649120.

The previous prime is 120004345550543. The next prime is 120004345550581. The reversal of 120004345550551 is 155055543400021.

It is not a de Polignac number, because 120004345550551 - 2³ = 120004345550543 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120004345550581) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 70840817070 + ... + 70840818763.

Almost surely, 2^{120004345550551} is an apocalyptic number.

120004345550551 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

120004345550551 is a deficient number, since it is larger than the sum of its proper divisors (30744914976825).

120004345550551 is a wasteful number, since it uses less digits than its factorization.

120004345550551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141681635862 (or 141681635851 counting only the distinct ones).

The product of its (nonzero) digits is 300000, while the sum is 40.

Adding to 120004345550551 its reverse (155055543400021), we get a palindrome (275059888950572).

The spelling of 120004345550551 in words is "one hundred twenty trillion, four billion, three hundred forty-five million, five hundred fifty thousand, five hundred fifty-one".