120842001550 has 12 divisors (see below), whose sum is σ = 224766122976. Its totient is φ = 48336800600.

The previous prime is 120842001547. The next prime is 120842001563. The reversal of 120842001550 is 55100248021.

It is a super-2 number, since 2×120842001550² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

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 5 ways as a sum of consecutive naturals, for example, 1208419966 + ... + 1208420065.

It is an arithmetic number, because the mean of its divisors is an integer number (18730510248).

Almost surely, 2^120842001550 is an apocalyptic number.

120842001550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

120842001550 is a deficient number, since it is larger than the sum of its proper divisors (103924121426).

120842001550 is a wasteful number, since it uses less digits than its factorization.

120842001550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2416840043 (or 2416840038 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 28.

Adding to 120842001550 its reverse (55100248021), we get a palindrome (175942249571).

The spelling of 120842001550 in words is "one hundred twenty billion, eight hundred forty-two million, one thousand, five hundred fifty".